fontconfig-user.html revision a6844aab
1a6844aabSmrg<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd"> 22c393a42Smrg<HTML 32c393a42Smrg><HEAD 42c393a42Smrg><TITLE 52c393a42Smrg>fonts-conf</TITLE 62c393a42Smrg><META 72c393a42SmrgNAME="GENERATOR" 82c393a42SmrgCONTENT="Modular DocBook HTML Stylesheet Version 1.79"></HEAD 92c393a42Smrg><BODY 102c393a42SmrgCLASS="REFENTRY" 112c393a42SmrgBGCOLOR="#FFFFFF" 122c393a42SmrgTEXT="#000000" 132c393a42SmrgLINK="#0000FF" 142c393a42SmrgVLINK="#840084" 152c393a42SmrgALINK="#0000FF" 162c393a42Smrg><H1 172c393a42Smrg><A 182c393a42SmrgNAME="AEN1" 192c393a42Smrg></A 202c393a42Smrg>fonts-conf</H1 212c393a42Smrg><DIV 222c393a42SmrgCLASS="REFNAMEDIV" 232c393a42Smrg><A 242c393a42SmrgNAME="AEN5" 252c393a42Smrg></A 262c393a42Smrg><H2 272c393a42Smrg>Name</H2 282c393a42Smrg>fonts.conf -- Font configuration files</DIV 292c393a42Smrg><DIV 302c393a42SmrgCLASS="REFSYNOPSISDIV" 312c393a42Smrg><A 322c393a42SmrgNAME="AEN8" 332c393a42Smrg></A 342c393a42Smrg><H2 352c393a42Smrg>Synopsis</H2 36a6844aabSmrg><TABLE 37a6844aabSmrgBORDER="0" 38a6844aabSmrgBGCOLOR="#E0E0E0" 39a6844aabSmrgWIDTH="100%" 40a6844aabSmrg><TR 41a6844aabSmrg><TD 422c393a42Smrg><PRE 432c393a42SmrgCLASS="SYNOPSIS" 442c393a42Smrg> /etc/fonts/fonts.conf 452c393a42Smrg /etc/fonts/fonts.dtd 462c393a42Smrg /etc/fonts/conf.d 47a6844aabSmrg ~/.fonts.conf.d 482c393a42Smrg ~/.fonts.conf</PRE 49a6844aabSmrg></TD 50a6844aabSmrg></TR 51a6844aabSmrg></TABLE 522c393a42Smrg></DIV 532c393a42Smrg><DIV 542c393a42SmrgCLASS="REFSECT1" 552c393a42Smrg><A 562c393a42SmrgNAME="AEN10" 572c393a42Smrg></A 582c393a42Smrg><H2 592c393a42Smrg>Description</H2 602c393a42Smrg><P 612c393a42Smrg>Fontconfig is a library designed to provide system-wide font configuration, 622c393a42Smrgcustomization and application access. 632c393a42Smrg </P 642c393a42Smrg></DIV 652c393a42Smrg><DIV 662c393a42SmrgCLASS="REFSECT1" 672c393a42Smrg><A 682c393a42SmrgNAME="AEN13" 692c393a42Smrg></A 702c393a42Smrg><H2 712c393a42Smrg>Functional Overview</H2 722c393a42Smrg><P 732c393a42Smrg>Fontconfig contains two essential modules, the configuration module which 742c393a42Smrgbuilds an internal configuration from XML files and the matching module 752c393a42Smrgwhich accepts font patterns and returns the nearest matching font. 762c393a42Smrg </P 772c393a42Smrg><DIV 782c393a42SmrgCLASS="REFSECT2" 792c393a42Smrg><A 802c393a42SmrgNAME="AEN16" 812c393a42Smrg></A 822c393a42Smrg><H3 832c393a42Smrg>Font Configuration</H3 842c393a42Smrg><P 852c393a42Smrg>The configuration module consists of the FcConfig datatype, libexpat and 862c393a42SmrgFcConfigParse which walks over an XML tree and amends a configuration with 872c393a42Smrgdata found within. From an external perspective, configuration of the 882c393a42Smrglibrary consists of generating a valid XML tree and feeding that to 892c393a42SmrgFcConfigParse. The only other mechanism provided to applications for 902c393a42Smrgchanging the running configuration is to add fonts and directories to the 912c393a42Smrglist of application-provided font files. 922c393a42Smrg </P 932c393a42Smrg><P 942c393a42Smrg>The intent is to make font configurations relatively static, and shared by 952c393a42Smrgas many applications as possible. It is hoped that this will lead to more 962c393a42Smrgstable font selection when passing names from one application to another. 972c393a42SmrgXML was chosen as a configuration file format because it provides a format 982c393a42Smrgwhich is easy for external agents to edit while retaining the correct 992c393a42Smrgstructure and syntax. 1002c393a42Smrg </P 1012c393a42Smrg><P 1022c393a42Smrg>Font configuration is separate from font matching; applications needing to 1032c393a42Smrgdo their own matching can access the available fonts from the library and 1042c393a42Smrgperform private matching. The intent is to permit applications to pick and 1052c393a42Smrgchoose appropriate functionality from the library instead of forcing them to 1062c393a42Smrgchoose between this library and a private configuration mechanism. The hope 1072c393a42Smrgis that this will ensure that configuration of fonts for all applications 1082c393a42Smrgcan be centralized in one place. Centralizing font configuration will 1092c393a42Smrgsimplify and regularize font installation and customization. 1102c393a42Smrg </P 1112c393a42Smrg></DIV 1122c393a42Smrg><DIV 1132c393a42SmrgCLASS="REFSECT2" 1142c393a42Smrg><A 1152c393a42SmrgNAME="AEN21" 1162c393a42Smrg></A 1172c393a42Smrg><H3 1182c393a42Smrg>Font Properties</H3 1192c393a42Smrg><P 1202c393a42Smrg>While font patterns may contain essentially any properties, there are some 1212c393a42Smrgwell known properties with associated types. Fontconfig uses some of these 1222c393a42Smrgproperties for font matching and font completion. Others are provided as a 1232c393a42Smrgconvenience for the applications' rendering mechanism. 1242c393a42Smrg </P 125a6844aabSmrg><TABLE 126a6844aabSmrgBORDER="0" 127a6844aabSmrgBGCOLOR="#E0E0E0" 128a6844aabSmrgWIDTH="100%" 129a6844aabSmrg><TR 130a6844aabSmrg><TD 1312c393a42Smrg><PRE 1322c393a42SmrgCLASS="PROGRAMLISTING" 1332c393a42Smrg> Property Type Description 1342c393a42Smrg -------------------------------------------------------------- 1352c393a42Smrg family String Font family names 1362c393a42Smrg familylang String Languages corresponding to each family 1372c393a42Smrg style String Font style. Overrides weight and slant 1382c393a42Smrg stylelang String Languages corresponding to each style 1392c393a42Smrg fullname String Font full names (often includes style) 1402c393a42Smrg fullnamelang String Languages corresponding to each fullname 1412c393a42Smrg slant Int Italic, oblique or roman 1422c393a42Smrg weight Int Light, medium, demibold, bold or black 1432c393a42Smrg size Double Point size 1442c393a42Smrg width Int Condensed, normal or expanded 1452c393a42Smrg aspect Double Stretches glyphs horizontally before hinting 1462c393a42Smrg pixelsize Double Pixel size 1472c393a42Smrg spacing Int Proportional, dual-width, monospace or charcell 1482c393a42Smrg foundry String Font foundry name 1492c393a42Smrg antialias Bool Whether glyphs can be antialiased 1502c393a42Smrg hinting Bool Whether the rasterizer should use hinting 1512c393a42Smrg hintstyle Int Automatic hinting style 1522c393a42Smrg verticallayout Bool Use vertical layout 1532c393a42Smrg autohint Bool Use autohinter instead of normal hinter 1542c393a42Smrg globaladvance Bool Use font global advance data 1552c393a42Smrg file String The filename holding the font 1562c393a42Smrg index Int The index of the font within the file 1572c393a42Smrg ftface FT_Face Use the specified FreeType face object 1582c393a42Smrg rasterizer String Which rasterizer is in use 1592c393a42Smrg outline Bool Whether the glyphs are outlines 1602c393a42Smrg scalable Bool Whether glyphs can be scaled 1612c393a42Smrg scale Double Scale factor for point->pixel conversions 1622c393a42Smrg dpi Double Target dots per inch 1632c393a42Smrg rgba Int unknown, rgb, bgr, vrgb, vbgr, 1642c393a42Smrg none - subpixel geometry 1652c393a42Smrg lcdfilter Int Type of LCD filter 1662c393a42Smrg minspace Bool Eliminate leading from line spacing 1672c393a42Smrg charset CharSet Unicode chars encoded by the font 1682c393a42Smrg lang String List of RFC-3066-style languages this 1692c393a42Smrg font supports 1702c393a42Smrg fontversion Int Version number of the font 1712c393a42Smrg capability String List of layout capabilities in the font 1722c393a42Smrg embolden Bool Rasterizer should synthetically embolden the font 1732c393a42Smrg </PRE 174a6844aabSmrg></TD 175a6844aabSmrg></TR 176a6844aabSmrg></TABLE 1772c393a42Smrg></DIV 1782c393a42Smrg><DIV 1792c393a42SmrgCLASS="REFSECT2" 1802c393a42Smrg><A 1812c393a42SmrgNAME="AEN25" 1822c393a42Smrg></A 1832c393a42Smrg><H3 1842c393a42Smrg>Font Matching</H3 1852c393a42Smrg><P 1862c393a42Smrg>Fontconfig performs matching by measuring the distance from a provided 1872c393a42Smrgpattern to all of the available fonts in the system. The closest matching 1882c393a42Smrgfont is selected. This ensures that a font will always be returned, but 1892c393a42Smrgdoesn't ensure that it is anything like the requested pattern. 1902c393a42Smrg </P 1912c393a42Smrg><P 1922c393a42Smrg> 1932c393a42SmrgFont matching starts with an application constructed pattern. The desired 1942c393a42Smrgattributes of the resulting font are collected together in a pattern. Each 1952c393a42Smrgproperty of the pattern can contain one or more values; these are listed in 1962c393a42Smrgpriority order; matches earlier in the list are considered "closer" than 1972c393a42Smrgmatches later in the list. 1982c393a42Smrg </P 1992c393a42Smrg><P 2002c393a42Smrg>The initial pattern is modified by applying the list of editing instructions 2012c393a42Smrgspecific to patterns found in the configuration; each consists of a match 2022c393a42Smrgpredicate and a set of editing operations. They are executed in the order 2032c393a42Smrgthey appeared in the configuration. Each match causes the associated 2042c393a42Smrgsequence of editing operations to be applied. 2052c393a42Smrg </P 2062c393a42Smrg><P 2072c393a42Smrg>After the pattern has been edited, a sequence of default substitutions are 2082c393a42Smrgperformed to canonicalize the set of available properties; this avoids the 2092c393a42Smrgneed for the lower layers to constantly provide default values for various 2102c393a42Smrgfont properties during rendering. 2112c393a42Smrg </P 2122c393a42Smrg><P 2132c393a42Smrg>The canonical font pattern is finally matched against all available fonts. 2142c393a42SmrgThe distance from the pattern to the font is measured for each of several 2152c393a42Smrgproperties: foundry, charset, family, lang, spacing, pixelsize, style, 2162c393a42Smrgslant, weight, antialias, rasterizer and outline. This list is in priority 2172c393a42Smrgorder -- results of comparing earlier elements of this list weigh more 2182c393a42Smrgheavily than later elements. 2192c393a42Smrg </P 2202c393a42Smrg><P 2212c393a42Smrg>There is one special case to this rule; family names are split into two 2222c393a42Smrgbindings; strong and weak. Strong family names are given greater precedence 2232c393a42Smrgin the match than lang elements while weak family names are given lower 2242c393a42Smrgprecedence than lang elements. This permits the document language to drive 2252c393a42Smrgfont selection when any document specified font is unavailable. 2262c393a42Smrg </P 2272c393a42Smrg><P 2282c393a42Smrg>The pattern representing that font is augmented to include any properties 2292c393a42Smrgfound in the pattern but not found in the font itself; this permits the 2302c393a42Smrgapplication to pass rendering instructions or any other data through the 2312c393a42Smrgmatching system. Finally, the list of editing instructions specific to 2322c393a42Smrgfonts found in the configuration are applied to the pattern. This modified 2332c393a42Smrgpattern is returned to the application. 2342c393a42Smrg </P 2352c393a42Smrg><P 2362c393a42Smrg>The return value contains sufficient information to locate and rasterize the 2372c393a42Smrgfont, including the file name, pixel size and other rendering data. As 2382c393a42Smrgnone of the information involved pertains to the FreeType library, 2392c393a42Smrgapplications are free to use any rasterization engine or even to take 2402c393a42Smrgthe identified font file and access it directly. 2412c393a42Smrg </P 2422c393a42Smrg><P 2432c393a42Smrg>The match/edit sequences in the configuration are performed in two passes 2442c393a42Smrgbecause there are essentially two different operations necessary -- the 2452c393a42Smrgfirst is to modify how fonts are selected; aliasing families and adding 2462c393a42Smrgsuitable defaults. The second is to modify how the selected fonts are 2472c393a42Smrgrasterized. Those must apply to the selected font, not the original pattern 2482c393a42Smrgas false matches will often occur. 2492c393a42Smrg </P 2502c393a42Smrg></DIV 2512c393a42Smrg><DIV 2522c393a42SmrgCLASS="REFSECT2" 2532c393a42Smrg><A 2542c393a42SmrgNAME="AEN36" 2552c393a42Smrg></A 2562c393a42Smrg><H3 2572c393a42Smrg>Font Names</H3 2582c393a42Smrg><P 2592c393a42Smrg>Fontconfig provides a textual representation for patterns that the library 2602c393a42Smrgcan both accept and generate. The representation is in three parts, first a 2612c393a42Smrglist of family names, second a list of point sizes and finally a list of 2622c393a42Smrgadditional properties: 2632c393a42Smrg </P 264a6844aabSmrg><TABLE 265a6844aabSmrgBORDER="0" 266a6844aabSmrgBGCOLOR="#E0E0E0" 267a6844aabSmrgWIDTH="100%" 268a6844aabSmrg><TR 269a6844aabSmrg><TD 2702c393a42Smrg><PRE 2712c393a42SmrgCLASS="PROGRAMLISTING" 272a6844aabSmrg> <families>-<point sizes>:<name1>=<values1>:<name2>=<values2>... 2732c393a42Smrg </PRE 274a6844aabSmrg></TD 275a6844aabSmrg></TR 276a6844aabSmrg></TABLE 2772c393a42Smrg><P 2782c393a42Smrg>Values in a list are separated with commas. The name needn't include either 2792c393a42Smrgfamilies or point sizes; they can be elided. In addition, there are 2802c393a42Smrgsymbolic constants that simultaneously indicate both a name and a value. 2812c393a42SmrgHere are some examples: 2822c393a42Smrg </P 283a6844aabSmrg><TABLE 284a6844aabSmrgBORDER="0" 285a6844aabSmrgBGCOLOR="#E0E0E0" 286a6844aabSmrgWIDTH="100%" 287a6844aabSmrg><TR 288a6844aabSmrg><TD 2892c393a42Smrg><PRE 2902c393a42SmrgCLASS="PROGRAMLISTING" 2912c393a42Smrg> Name Meaning 2922c393a42Smrg ---------------------------------------------------------- 2932c393a42Smrg Times-12 12 point Times Roman 2942c393a42Smrg Times-12:bold 12 point Times Bold 2952c393a42Smrg Courier:italic Courier Italic in the default size 2962c393a42Smrg Monospace:matrix=1 .1 0 1 The users preferred monospace font 2972c393a42Smrg with artificial obliquing 2982c393a42Smrg </PRE 299a6844aabSmrg></TD 300a6844aabSmrg></TR 301a6844aabSmrg></TABLE 3022c393a42Smrg><P 3032c393a42Smrg>The '\', '-', ':' and ',' characters in family names must be preceeded by a 3042c393a42Smrg'\' character to avoid having them misinterpreted. Similarly, values 3052c393a42Smrgcontaining '\', '=', '_', ':' and ',' must also have them preceeded by a 3062c393a42Smrg'\' character. The '\' characters are stripped out of the family name and 3072c393a42Smrgvalues as the font name is read. 3082c393a42Smrg </P 3092c393a42Smrg></DIV 3102c393a42Smrg></DIV 3112c393a42Smrg><DIV 3122c393a42SmrgCLASS="REFSECT1" 3132c393a42Smrg><A 3142c393a42SmrgNAME="AEN43" 3152c393a42Smrg></A 3162c393a42Smrg><H2 3172c393a42Smrg>Debugging Applications</H2 3182c393a42Smrg><P 3192c393a42Smrg>To help diagnose font and applications problems, fontconfig is built with a 3202c393a42Smrglarge amount of internal debugging left enabled. It is controlled by means 3212c393a42Smrgof the FC_DEBUG environment variable. The value of this variable is 3222c393a42Smrginterpreted as a number, and each bit within that value controls different 3232c393a42Smrgdebugging messages. 3242c393a42Smrg </P 325a6844aabSmrg><TABLE 326a6844aabSmrgBORDER="0" 327a6844aabSmrgBGCOLOR="#E0E0E0" 328a6844aabSmrgWIDTH="100%" 329a6844aabSmrg><TR 330a6844aabSmrg><TD 3312c393a42Smrg><PRE 3322c393a42SmrgCLASS="PROGRAMLISTING" 3332c393a42Smrg> Name Value Meaning 3342c393a42Smrg --------------------------------------------------------- 3352c393a42Smrg MATCH 1 Brief information about font matching 3362c393a42Smrg MATCHV 2 Extensive font matching information 3372c393a42Smrg EDIT 4 Monitor match/test/edit execution 3382c393a42Smrg FONTSET 8 Track loading of font information at startup 3392c393a42Smrg CACHE 16 Watch cache files being written 3402c393a42Smrg CACHEV 32 Extensive cache file writing information 3412c393a42Smrg PARSE 64 (no longer in use) 3422c393a42Smrg SCAN 128 Watch font files being scanned to build caches 3432c393a42Smrg SCANV 256 Verbose font file scanning information 3442c393a42Smrg MEMORY 512 Monitor fontconfig memory usage 3452c393a42Smrg CONFIG 1024 Monitor which config files are loaded 3462c393a42Smrg LANGSET 2048 Dump char sets used to construct lang values 3472c393a42Smrg OBJTYPES 4096 Display message when value typechecks fail 3482c393a42Smrg </PRE 349a6844aabSmrg></TD 350a6844aabSmrg></TR 351a6844aabSmrg></TABLE 3522c393a42Smrg><P 3532c393a42Smrg>Add the value of the desired debug levels together and assign that (in 3542c393a42Smrgbase 10) to the FC_DEBUG environment variable before running the 3552c393a42Smrgapplication. Output from these statements is sent to stdout. 3562c393a42Smrg </P 3572c393a42Smrg></DIV 3582c393a42Smrg><DIV 3592c393a42SmrgCLASS="REFSECT1" 3602c393a42Smrg><A 3612c393a42SmrgNAME="AEN48" 3622c393a42Smrg></A 3632c393a42Smrg><H2 3642c393a42Smrg>Lang Tags</H2 3652c393a42Smrg><P 3662c393a42Smrg>Each font in the database contains a list of languages it supports. This is 3672c393a42Smrgcomputed by comparing the Unicode coverage of the font with the orthography 3682c393a42Smrgof each language. Languages are tagged using an RFC-3066 compatible naming 3692c393a42Smrgand occur in two parts -- the ISO 639 language tag followed a hyphen and then 3702c393a42Smrgby the ISO 3166 country code. The hyphen and country code may be elided. 3712c393a42Smrg </P 3722c393a42Smrg><P 3732c393a42Smrg>Fontconfig has orthographies for several languages built into the library. 3742c393a42SmrgNo provision has been made for adding new ones aside from rebuilding the 3752c393a42Smrglibrary. It currently supports 122 of the 139 languages named in ISO 639-1, 3762c393a42Smrg141 of the languages with two-letter codes from ISO 639-2 and another 30 3772c393a42Smrglanguages with only three-letter codes. Languages with both two and three 3782c393a42Smrgletter codes are provided with only the two letter code. 3792c393a42Smrg </P 3802c393a42Smrg><P 3812c393a42Smrg>For languages used in multiple territories with radically different 3822c393a42Smrgcharacter sets, fontconfig includes per-territory orthographies. This 3832c393a42Smrgincludes Azerbaijani, Kurdish, Pashto, Tigrinya and Chinese. 3842c393a42Smrg </P 3852c393a42Smrg></DIV 3862c393a42Smrg><DIV 3872c393a42SmrgCLASS="REFSECT1" 3882c393a42Smrg><A 3892c393a42SmrgNAME="AEN53" 3902c393a42Smrg></A 3912c393a42Smrg><H2 3922c393a42Smrg>Configuration File Format</H2 3932c393a42Smrg><P 3942c393a42Smrg>Configuration files for fontconfig are stored in XML format; this 3952c393a42Smrgformat makes external configuration tools easier to write and ensures that 3962c393a42Smrgthey will generate syntactically correct configuration files. As XML 3972c393a42Smrgfiles are plain text, they can also be manipulated by the expert user using 3982c393a42Smrga text editor. 3992c393a42Smrg </P 4002c393a42Smrg><P 4012c393a42Smrg>The fontconfig document type definition resides in the external entity 4022c393a42Smrg"fonts.dtd"; this is normally stored in the default font configuration 4032c393a42Smrgdirectory (/etc/fonts). Each configuration file should contain the 4042c393a42Smrgfollowing structure: 405a6844aabSmrg <TABLE 406a6844aabSmrgBORDER="0" 407a6844aabSmrgBGCOLOR="#E0E0E0" 408a6844aabSmrgWIDTH="100%" 409a6844aabSmrg><TR 410a6844aabSmrg><TD 411a6844aabSmrg><PRE 4122c393a42SmrgCLASS="PROGRAMLISTING" 413a6844aabSmrg> <?xml version="1.0"?> 414a6844aabSmrg <!DOCTYPE fontconfig SYSTEM "fonts.dtd"> 415a6844aabSmrg <fontconfig> 4162c393a42Smrg ... 417a6844aabSmrg </fontconfig> 4182c393a42Smrg </PRE 419a6844aabSmrg></TD 420a6844aabSmrg></TR 421a6844aabSmrg></TABLE 4222c393a42Smrg> 4232c393a42Smrg </P 4242c393a42Smrg><DIV 4252c393a42SmrgCLASS="REFSECT2" 4262c393a42Smrg><A 4272c393a42SmrgNAME="AEN58" 4282c393a42Smrg></A 4292c393a42Smrg><H3 4302c393a42Smrg><TT 4312c393a42SmrgCLASS="LITERAL" 432a6844aabSmrg><fontconfig></TT 4332c393a42Smrg></H3 4342c393a42Smrg><P 4352c393a42Smrg>This is the top level element for a font configuration and can contain 4362c393a42Smrg<TT 4372c393a42SmrgCLASS="LITERAL" 438a6844aabSmrg><dir></TT 4392c393a42Smrg>, <TT 4402c393a42SmrgCLASS="LITERAL" 441a6844aabSmrg><cache></TT 4422c393a42Smrg>, <TT 4432c393a42SmrgCLASS="LITERAL" 444a6844aabSmrg><include></TT 4452c393a42Smrg>, <TT 4462c393a42SmrgCLASS="LITERAL" 447a6844aabSmrg><match></TT 4482c393a42Smrg> and <TT 4492c393a42SmrgCLASS="LITERAL" 450a6844aabSmrg><alias></TT 4512c393a42Smrg> elements in any order. 4522c393a42Smrg </P 4532c393a42Smrg></DIV 4542c393a42Smrg><DIV 4552c393a42SmrgCLASS="REFSECT2" 4562c393a42Smrg><A 4572c393a42SmrgNAME="AEN67" 4582c393a42Smrg></A 4592c393a42Smrg><H3 4602c393a42Smrg><TT 4612c393a42SmrgCLASS="LITERAL" 462a6844aabSmrg><dir></TT 4632c393a42Smrg></H3 4642c393a42Smrg><P 4652c393a42Smrg>This element contains a directory name which will be scanned for font files 4662c393a42Smrgto include in the set of available fonts. 4672c393a42Smrg </P 4682c393a42Smrg></DIV 4692c393a42Smrg><DIV 4702c393a42SmrgCLASS="REFSECT2" 4712c393a42Smrg><A 4722c393a42SmrgNAME="AEN71" 4732c393a42Smrg></A 4742c393a42Smrg><H3 4752c393a42Smrg><TT 4762c393a42SmrgCLASS="LITERAL" 477a6844aabSmrg><cache></TT 4782c393a42Smrg></H3 4792c393a42Smrg><P 4802c393a42Smrg>This element contains a file name for the per-user cache of font 4812c393a42Smrginformation. If it starts with '~', it refers to a file in the users 4822c393a42Smrghome directory. This file is used to hold information about fonts that 4832c393a42Smrgisn't present in the per-directory cache files. It is automatically 4842c393a42Smrgmaintained by the fontconfig library. The default for this file 4852c393a42Smrgis ``~/.fonts.cache-<TT 4862c393a42SmrgCLASS="LITERAL" 487a6844aabSmrg><version></TT 4882c393a42Smrg>'', where <TT 4892c393a42SmrgCLASS="LITERAL" 490a6844aabSmrg><version></TT 4912c393a42Smrg> is the font configuration 4922c393a42Smrgfile version number (currently 2). 4932c393a42Smrg </P 4942c393a42Smrg></DIV 4952c393a42Smrg><DIV 4962c393a42SmrgCLASS="REFSECT2" 4972c393a42Smrg><A 4982c393a42SmrgNAME="AEN77" 4992c393a42Smrg></A 5002c393a42Smrg><H3 5012c393a42Smrg><TT 5022c393a42SmrgCLASS="LITERAL" 503a6844aabSmrg><include ignore_missing="no"></TT 5042c393a42Smrg></H3 5052c393a42Smrg><P 5062c393a42Smrg>This element contains the name of an additional configuration file or 5072c393a42Smrgdirectory. If a directory, every file within that directory starting with an 5082c393a42SmrgASCII digit (U+0030 - U+0039) and ending with the string ``.conf'' will be processed in sorted order. When 5092c393a42Smrgthe XML datatype is traversed by FcConfigParse, the contents of the file(s) 5102c393a42Smrgwill also be incorporated into the configuration by passing the filename(s) to 5112c393a42SmrgFcConfigLoadAndParse. If 'ignore_missing' is set to "yes" instead of the 5122c393a42Smrgdefault "no", a missing file or directory will elicit no warning message from 5132c393a42Smrgthe library. 5142c393a42Smrg </P 5152c393a42Smrg></DIV 5162c393a42Smrg><DIV 5172c393a42SmrgCLASS="REFSECT2" 5182c393a42Smrg><A 5192c393a42SmrgNAME="AEN81" 5202c393a42Smrg></A 5212c393a42Smrg><H3 5222c393a42Smrg><TT 5232c393a42SmrgCLASS="LITERAL" 524a6844aabSmrg><config></TT 5252c393a42Smrg></H3 5262c393a42Smrg><P 5272c393a42Smrg>This element provides a place to consolidate additional configuration 5282c393a42Smrginformation. <TT 5292c393a42SmrgCLASS="LITERAL" 530a6844aabSmrg><config></TT 5312c393a42Smrg> can contain <TT 5322c393a42SmrgCLASS="LITERAL" 533a6844aabSmrg><blank></TT 5342c393a42Smrg> and <TT 5352c393a42SmrgCLASS="LITERAL" 536a6844aabSmrg><rescan></TT 5372c393a42Smrg> elements in any 5382c393a42Smrgorder. 5392c393a42Smrg </P 5402c393a42Smrg></DIV 5412c393a42Smrg><DIV 5422c393a42SmrgCLASS="REFSECT2" 5432c393a42Smrg><A 5442c393a42SmrgNAME="AEN88" 5452c393a42Smrg></A 5462c393a42Smrg><H3 5472c393a42Smrg><TT 5482c393a42SmrgCLASS="LITERAL" 549a6844aabSmrg><blank></TT 5502c393a42Smrg></H3 5512c393a42Smrg><P 5522c393a42Smrg>Fonts often include "broken" glyphs which appear in the encoding but are 5532c393a42Smrgdrawn as blanks on the screen. Within the <TT 5542c393a42SmrgCLASS="LITERAL" 555a6844aabSmrg><blank></TT 5562c393a42Smrg> element, place each 5572c393a42SmrgUnicode characters which is supposed to be blank in an <TT 5582c393a42SmrgCLASS="LITERAL" 559a6844aabSmrg><int></TT 5602c393a42Smrg> element. 5612c393a42SmrgCharacters outside of this set which are drawn as blank will be elided from 5622c393a42Smrgthe set of characters supported by the font. 5632c393a42Smrg </P 5642c393a42Smrg></DIV 5652c393a42Smrg><DIV 5662c393a42SmrgCLASS="REFSECT2" 5672c393a42Smrg><A 5682c393a42SmrgNAME="AEN94" 5692c393a42Smrg></A 5702c393a42Smrg><H3 5712c393a42Smrg><TT 5722c393a42SmrgCLASS="LITERAL" 573a6844aabSmrg><rescan></TT 5742c393a42Smrg></H3 5752c393a42Smrg><P 5762c393a42Smrg>The <TT 5772c393a42SmrgCLASS="LITERAL" 578a6844aabSmrg><rescan></TT 5792c393a42Smrg> element holds an <TT 5802c393a42SmrgCLASS="LITERAL" 581a6844aabSmrg><int></TT 5822c393a42Smrg> element which indicates the default 5832c393a42Smrginterval between automatic checks for font configuration changes. 5842c393a42SmrgFontconfig will validate all of the configuration files and directories and 5852c393a42Smrgautomatically rebuild the internal datastructures when this interval passes. 5862c393a42Smrg </P 5872c393a42Smrg></DIV 5882c393a42Smrg><DIV 5892c393a42SmrgCLASS="REFSECT2" 5902c393a42Smrg><A 5912c393a42SmrgNAME="AEN100" 5922c393a42Smrg></A 5932c393a42Smrg><H3 5942c393a42Smrg><TT 5952c393a42SmrgCLASS="LITERAL" 596a6844aabSmrg><selectfont></TT 5972c393a42Smrg></H3 5982c393a42Smrg><P 5992c393a42Smrg>This element is used to black/white list fonts from being listed or matched 6002c393a42Smrgagainst. It holds acceptfont and rejectfont elements. 6012c393a42Smrg </P 6022c393a42Smrg></DIV 6032c393a42Smrg><DIV 6042c393a42SmrgCLASS="REFSECT2" 6052c393a42Smrg><A 6062c393a42SmrgNAME="AEN104" 6072c393a42Smrg></A 6082c393a42Smrg><H3 6092c393a42Smrg><TT 6102c393a42SmrgCLASS="LITERAL" 611a6844aabSmrg><acceptfont></TT 6122c393a42Smrg></H3 6132c393a42Smrg><P 6142c393a42Smrg>Fonts matched by an acceptfont element are "whitelisted"; such fonts are 6152c393a42Smrgexplicitly included in the set of fonts used to resolve list and match 6162c393a42Smrgrequests; including them in this list protects them from being "blacklisted" 6172c393a42Smrgby a rejectfont element. Acceptfont elements include glob and pattern 6182c393a42Smrgelements which are used to match fonts. 6192c393a42Smrg </P 6202c393a42Smrg></DIV 6212c393a42Smrg><DIV 6222c393a42SmrgCLASS="REFSECT2" 6232c393a42Smrg><A 6242c393a42SmrgNAME="AEN108" 6252c393a42Smrg></A 6262c393a42Smrg><H3 6272c393a42Smrg><TT 6282c393a42SmrgCLASS="LITERAL" 629a6844aabSmrg><rejectfont></TT 6302c393a42Smrg></H3 6312c393a42Smrg><P 6322c393a42Smrg>Fonts matched by an rejectfont element are "blacklisted"; such fonts are 6332c393a42Smrgexcluded from the set of fonts used to resolve list and match requests as if 6342c393a42Smrgthey didn't exist in the system. Rejectfont elements include glob and 6352c393a42Smrgpattern elements which are used to match fonts. 6362c393a42Smrg </P 6372c393a42Smrg></DIV 6382c393a42Smrg><DIV 6392c393a42SmrgCLASS="REFSECT2" 6402c393a42Smrg><A 6412c393a42SmrgNAME="AEN112" 6422c393a42Smrg></A 6432c393a42Smrg><H3 6442c393a42Smrg><TT 6452c393a42SmrgCLASS="LITERAL" 646a6844aabSmrg><glob></TT 6472c393a42Smrg></H3 6482c393a42Smrg><P 6492c393a42Smrg>Glob elements hold shell-style filename matching patterns (including ? and 6502c393a42Smrg*) which match fonts based on their complete pathnames. This can be used to 6512c393a42Smrgexclude a set of directories (/usr/share/fonts/uglyfont*), or particular 6522c393a42Smrgfont file types (*.pcf.gz), but the latter mechanism relies rather heavily 6532c393a42Smrgon filenaming conventions which can't be relied upon. Note that globs 6542c393a42Smrgonly apply to directories, not to individual fonts. 6552c393a42Smrg </P 6562c393a42Smrg></DIV 6572c393a42Smrg><DIV 6582c393a42SmrgCLASS="REFSECT2" 6592c393a42Smrg><A 6602c393a42SmrgNAME="AEN116" 6612c393a42Smrg></A 6622c393a42Smrg><H3 6632c393a42Smrg><TT 6642c393a42SmrgCLASS="LITERAL" 665a6844aabSmrg><pattern></TT 6662c393a42Smrg></H3 6672c393a42Smrg><P 6682c393a42Smrg>Pattern elements perform list-style matching on incoming fonts; that is, 6692c393a42Smrgthey hold a list of elements and associated values. If all of those 6702c393a42Smrgelements have a matching value, then the pattern matches the font. This can 6712c393a42Smrgbe used to select fonts based on attributes of the font (scalable, bold, 6722c393a42Smrgetc), which is a more reliable mechanism than using file extensions. 6732c393a42SmrgPattern elements include patelt elements. 6742c393a42Smrg </P 6752c393a42Smrg></DIV 6762c393a42Smrg><DIV 6772c393a42SmrgCLASS="REFSECT2" 6782c393a42Smrg><A 6792c393a42SmrgNAME="AEN120" 6802c393a42Smrg></A 6812c393a42Smrg><H3 6822c393a42Smrg><TT 6832c393a42SmrgCLASS="LITERAL" 684a6844aabSmrg><patelt name="property"></TT 6852c393a42Smrg></H3 6862c393a42Smrg><P 6872c393a42Smrg>Patelt elements hold a single pattern element and list of values. They must 6882c393a42Smrghave a 'name' attribute which indicates the pattern element name. Patelt 6892c393a42Smrgelements include int, double, string, matrix, bool, charset and const 6902c393a42Smrgelements. 6912c393a42Smrg </P 6922c393a42Smrg></DIV 6932c393a42Smrg><DIV 6942c393a42SmrgCLASS="REFSECT2" 6952c393a42Smrg><A 6962c393a42SmrgNAME="AEN124" 6972c393a42Smrg></A 6982c393a42Smrg><H3 6992c393a42Smrg><TT 7002c393a42SmrgCLASS="LITERAL" 701a6844aabSmrg><match target="pattern"></TT 7022c393a42Smrg></H3 7032c393a42Smrg><P 7042c393a42Smrg>This element holds first a (possibly empty) list of <TT 7052c393a42SmrgCLASS="LITERAL" 706a6844aabSmrg><test></TT 7072c393a42Smrg> elements and then 7082c393a42Smrga (possibly empty) list of <TT 7092c393a42SmrgCLASS="LITERAL" 710a6844aabSmrg><edit></TT 7112c393a42Smrg> elements. Patterns which match all of the 7122c393a42Smrgtests are subjected to all the edits. If 'target' is set to "font" instead 7132c393a42Smrgof the default "pattern", then this element applies to the font name 7142c393a42Smrgresulting from a match rather than a font pattern to be matched. If 'target' 7152c393a42Smrgis set to "scan", then this element applies when the font is scanned to 7162c393a42Smrgbuild the fontconfig database. 7172c393a42Smrg </P 7182c393a42Smrg></DIV 7192c393a42Smrg><DIV 7202c393a42SmrgCLASS="REFSECT2" 7212c393a42Smrg><A 7222c393a42SmrgNAME="AEN130" 7232c393a42Smrg></A 7242c393a42Smrg><H3 7252c393a42Smrg><TT 7262c393a42SmrgCLASS="LITERAL" 727a6844aabSmrg><test qual="any" name="property" target="default" compare="eq"></TT 7282c393a42Smrg></H3 7292c393a42Smrg><P 7302c393a42Smrg>This element contains a single value which is compared with the target 7312c393a42Smrg('pattern', 'font', 'scan' or 'default') property "property" (substitute any of the property names seen 7322c393a42Smrgabove). 'compare' can be one of "eq", "not_eq", "less", "less_eq", "more", or 7332c393a42Smrg"more_eq". 'qual' may either be the default, "any", in which case the match 7342c393a42Smrgsucceeds if any value associated with the property matches the test value, or 7352c393a42Smrg"all", in which case all of the values associated with the property must 736a6844aabSmrgmatch the test value. When used in a <match target="font"> element, 737a6844aabSmrgthe target= attribute in the <test> element selects between matching 7382c393a42Smrgthe original pattern or the font. "default" selects whichever target the 739a6844aabSmrgouter <match> element has selected. 7402c393a42Smrg </P 7412c393a42Smrg></DIV 7422c393a42Smrg><DIV 7432c393a42SmrgCLASS="REFSECT2" 7442c393a42Smrg><A 7452c393a42SmrgNAME="AEN134" 7462c393a42Smrg></A 7472c393a42Smrg><H3 7482c393a42Smrg><TT 7492c393a42SmrgCLASS="LITERAL" 750a6844aabSmrg><edit name="property" mode="assign" binding="weak"></TT 7512c393a42Smrg></H3 7522c393a42Smrg><P 7532c393a42Smrg>This element contains a list of expression elements (any of the value or 7542c393a42Smrgoperator elements). The expression elements are evaluated at run-time and 7552c393a42Smrgmodify the property "property". The modification depends on whether 7562c393a42Smrg"property" was matched by one of the associated <TT 7572c393a42SmrgCLASS="LITERAL" 758a6844aabSmrg><test></TT 7592c393a42Smrg> elements, if so, the 7602c393a42Smrgmodification may affect the first matched value. Any values inserted into 7612c393a42Smrgthe property are given the indicated binding ("strong", "weak" or "same") 7622c393a42Smrgwith "same" binding using the value from the matched pattern element. 7632c393a42Smrg'mode' is one of: 764a6844aabSmrg <TABLE 765a6844aabSmrgBORDER="0" 766a6844aabSmrgBGCOLOR="#E0E0E0" 767a6844aabSmrgWIDTH="100%" 768a6844aabSmrg><TR 769a6844aabSmrg><TD 770a6844aabSmrg><PRE 7712c393a42SmrgCLASS="PROGRAMLISTING" 7722c393a42Smrg> Mode With Match Without Match 7732c393a42Smrg --------------------------------------------------------------------- 7742c393a42Smrg "assign" Replace matching value Replace all values 7752c393a42Smrg "assign_replace" Replace all values Replace all values 7762c393a42Smrg "prepend" Insert before matching Insert at head of list 7772c393a42Smrg "prepend_first" Insert at head of list Insert at head of list 7782c393a42Smrg "append" Append after matching Append at end of list 7792c393a42Smrg "append_last" Append at end of list Append at end of list 7802c393a42Smrg </PRE 781a6844aabSmrg></TD 782a6844aabSmrg></TR 783a6844aabSmrg></TABLE 7842c393a42Smrg> 7852c393a42Smrg </P 7862c393a42Smrg></DIV 7872c393a42Smrg><DIV 7882c393a42SmrgCLASS="REFSECT2" 7892c393a42Smrg><A 7902c393a42SmrgNAME="AEN140" 7912c393a42Smrg></A 7922c393a42Smrg><H3 7932c393a42Smrg><TT 7942c393a42SmrgCLASS="LITERAL" 795a6844aabSmrg><int></TT 7962c393a42Smrg>, <TT 7972c393a42SmrgCLASS="LITERAL" 798a6844aabSmrg><double></TT 7992c393a42Smrg>, <TT 8002c393a42SmrgCLASS="LITERAL" 801a6844aabSmrg><string></TT 8022c393a42Smrg>, <TT 8032c393a42SmrgCLASS="LITERAL" 804a6844aabSmrg><bool></TT 8052c393a42Smrg></H3 8062c393a42Smrg><P 8072c393a42Smrg>These elements hold a single value of the indicated type. <TT 8082c393a42SmrgCLASS="LITERAL" 809a6844aabSmrg><bool></TT 8102c393a42Smrg> 8112c393a42Smrgelements hold either true or false. An important limitation exists in 8122c393a42Smrgthe parsing of floating point numbers -- fontconfig requires that 8132c393a42Smrgthe mantissa start with a digit, not a decimal point, so insert a leading 8142c393a42Smrgzero for purely fractional values (e.g. use 0.5 instead of .5 and -0.5 8152c393a42Smrginstead of -.5). 8162c393a42Smrg </P 8172c393a42Smrg></DIV 8182c393a42Smrg><DIV 8192c393a42SmrgCLASS="REFSECT2" 8202c393a42Smrg><A 8212c393a42SmrgNAME="AEN148" 8222c393a42Smrg></A 8232c393a42Smrg><H3 8242c393a42Smrg><TT 8252c393a42SmrgCLASS="LITERAL" 826a6844aabSmrg><matrix></TT 8272c393a42Smrg></H3 8282c393a42Smrg><P 8292c393a42Smrg>This element holds the four <TT 8302c393a42SmrgCLASS="LITERAL" 831a6844aabSmrg><double></TT 8322c393a42Smrg> elements of an affine 8332c393a42Smrgtransformation. 8342c393a42Smrg </P 8352c393a42Smrg></DIV 8362c393a42Smrg><DIV 8372c393a42SmrgCLASS="REFSECT2" 8382c393a42Smrg><A 8392c393a42SmrgNAME="AEN153" 8402c393a42Smrg></A 8412c393a42Smrg><H3 8422c393a42Smrg><TT 8432c393a42SmrgCLASS="LITERAL" 844a6844aabSmrg><name></TT 8452c393a42Smrg></H3 8462c393a42Smrg><P 8472c393a42Smrg>Holds a property name. Evaluates to the first value from the property of 8482c393a42Smrgthe font, not the pattern. 8492c393a42Smrg </P 8502c393a42Smrg></DIV 8512c393a42Smrg><DIV 8522c393a42SmrgCLASS="REFSECT2" 8532c393a42Smrg><A 8542c393a42SmrgNAME="AEN157" 8552c393a42Smrg></A 8562c393a42Smrg><H3 8572c393a42Smrg><TT 8582c393a42SmrgCLASS="LITERAL" 859a6844aabSmrg><const></TT 8602c393a42Smrg></H3 8612c393a42Smrg><P 8622c393a42Smrg>Holds the name of a constant; these are always integers and serve as 8632c393a42Smrgsymbolic names for common font values: 864a6844aabSmrg <TABLE 865a6844aabSmrgBORDER="0" 866a6844aabSmrgBGCOLOR="#E0E0E0" 867a6844aabSmrgWIDTH="100%" 868a6844aabSmrg><TR 869a6844aabSmrg><TD 870a6844aabSmrg><PRE 8712c393a42SmrgCLASS="PROGRAMLISTING" 8722c393a42Smrg> Constant Property Value 8732c393a42Smrg ------------------------------------- 8742c393a42Smrg thin weight 0 8752c393a42Smrg extralight weight 40 8762c393a42Smrg ultralight weight 40 8772c393a42Smrg light weight 50 8782c393a42Smrg book weight 75 8792c393a42Smrg regular weight 80 8802c393a42Smrg normal weight 80 8812c393a42Smrg medium weight 100 8822c393a42Smrg demibold weight 180 8832c393a42Smrg semibold weight 180 8842c393a42Smrg bold weight 200 8852c393a42Smrg extrabold weight 205 8862c393a42Smrg black weight 210 8872c393a42Smrg heavy weight 210 8882c393a42Smrg roman slant 0 8892c393a42Smrg italic slant 100 8902c393a42Smrg oblique slant 110 8912c393a42Smrg ultracondensed width 50 8922c393a42Smrg extracondensed width 63 8932c393a42Smrg condensed width 75 8942c393a42Smrg semicondensed width 87 8952c393a42Smrg normal width 100 8962c393a42Smrg semiexpanded width 113 8972c393a42Smrg expanded width 125 8982c393a42Smrg extraexpanded width 150 8992c393a42Smrg ultraexpanded width 200 9002c393a42Smrg proportional spacing 0 9012c393a42Smrg dual spacing 90 9022c393a42Smrg mono spacing 100 9032c393a42Smrg charcell spacing 110 9042c393a42Smrg unknown rgba 0 9052c393a42Smrg rgb rgba 1 9062c393a42Smrg bgr rgba 2 9072c393a42Smrg vrgb rgba 3 9082c393a42Smrg vbgr rgba 4 9092c393a42Smrg none rgba 5 9102c393a42Smrg lcdnone lcdfilter 0 9112c393a42Smrg lcddefault lcdfilter 1 9122c393a42Smrg lcdlight lcdfilter 2 9132c393a42Smrg lcdlegacy lcdfilter 3 9142c393a42Smrg hintnone hintstyle 0 9152c393a42Smrg hintslight hintstyle 1 9162c393a42Smrg hintmedium hintstyle 2 9172c393a42Smrg hintfull hintstyle 3 9182c393a42Smrg </PRE 919a6844aabSmrg></TD 920a6844aabSmrg></TR 921a6844aabSmrg></TABLE 9222c393a42Smrg> 9232c393a42Smrg </P 9242c393a42Smrg></DIV 9252c393a42Smrg><DIV 9262c393a42SmrgCLASS="REFSECT2" 9272c393a42Smrg><A 9282c393a42SmrgNAME="AEN162" 9292c393a42Smrg></A 9302c393a42Smrg><H3 9312c393a42Smrg><TT 9322c393a42SmrgCLASS="LITERAL" 933a6844aabSmrg><or></TT 9342c393a42Smrg>, <TT 9352c393a42SmrgCLASS="LITERAL" 936a6844aabSmrg><and></TT 9372c393a42Smrg>, <TT 9382c393a42SmrgCLASS="LITERAL" 939a6844aabSmrg><plus></TT 9402c393a42Smrg>, <TT 9412c393a42SmrgCLASS="LITERAL" 942a6844aabSmrg><minus></TT 9432c393a42Smrg>, <TT 9442c393a42SmrgCLASS="LITERAL" 945a6844aabSmrg><times></TT 9462c393a42Smrg>, <TT 9472c393a42SmrgCLASS="LITERAL" 948a6844aabSmrg><divide></TT 9492c393a42Smrg></H3 9502c393a42Smrg><P 9512c393a42Smrg>These elements perform the specified operation on a list of expression 9522c393a42Smrgelements. <TT 9532c393a42SmrgCLASS="LITERAL" 954a6844aabSmrg><or></TT 9552c393a42Smrg> and <TT 9562c393a42SmrgCLASS="LITERAL" 957a6844aabSmrg><and></TT 9582c393a42Smrg> are boolean, not bitwise. 9592c393a42Smrg </P 9602c393a42Smrg></DIV 9612c393a42Smrg><DIV 9622c393a42SmrgCLASS="REFSECT2" 9632c393a42Smrg><A 9642c393a42SmrgNAME="AEN173" 9652c393a42Smrg></A 9662c393a42Smrg><H3 9672c393a42Smrg><TT 9682c393a42SmrgCLASS="LITERAL" 969a6844aabSmrg><eq></TT 9702c393a42Smrg>, <TT 9712c393a42SmrgCLASS="LITERAL" 972a6844aabSmrg><not_eq></TT 9732c393a42Smrg>, <TT 9742c393a42SmrgCLASS="LITERAL" 975a6844aabSmrg><less></TT 9762c393a42Smrg>, <TT 9772c393a42SmrgCLASS="LITERAL" 978a6844aabSmrg><less_eq></TT 9792c393a42Smrg>, <TT 9802c393a42SmrgCLASS="LITERAL" 981a6844aabSmrg><more></TT 9822c393a42Smrg>, <TT 9832c393a42SmrgCLASS="LITERAL" 984a6844aabSmrg><more_eq></TT 9852c393a42Smrg></H3 9862c393a42Smrg><P 9872c393a42Smrg>These elements compare two values, producing a boolean result. 9882c393a42Smrg </P 9892c393a42Smrg></DIV 9902c393a42Smrg><DIV 9912c393a42SmrgCLASS="REFSECT2" 9922c393a42Smrg><A 9932c393a42SmrgNAME="AEN182" 9942c393a42Smrg></A 9952c393a42Smrg><H3 9962c393a42Smrg><TT 9972c393a42SmrgCLASS="LITERAL" 998a6844aabSmrg><not></TT 9992c393a42Smrg></H3 10002c393a42Smrg><P 10012c393a42Smrg>Inverts the boolean sense of its one expression element 10022c393a42Smrg </P 10032c393a42Smrg></DIV 10042c393a42Smrg><DIV 10052c393a42SmrgCLASS="REFSECT2" 10062c393a42Smrg><A 10072c393a42SmrgNAME="AEN186" 10082c393a42Smrg></A 10092c393a42Smrg><H3 10102c393a42Smrg><TT 10112c393a42SmrgCLASS="LITERAL" 1012a6844aabSmrg><if></TT 10132c393a42Smrg></H3 10142c393a42Smrg><P 10152c393a42Smrg>This element takes three expression elements; if the value of the first is 10162c393a42Smrgtrue, it produces the value of the second, otherwise it produces the value 10172c393a42Smrgof the third. 10182c393a42Smrg </P 10192c393a42Smrg></DIV 10202c393a42Smrg><DIV 10212c393a42SmrgCLASS="REFSECT2" 10222c393a42Smrg><A 10232c393a42SmrgNAME="AEN190" 10242c393a42Smrg></A 10252c393a42Smrg><H3 10262c393a42Smrg><TT 10272c393a42SmrgCLASS="LITERAL" 1028a6844aabSmrg><alias></TT 10292c393a42Smrg></H3 10302c393a42Smrg><P 10312c393a42Smrg>Alias elements provide a shorthand notation for the set of common match 10322c393a42Smrgoperations needed to substitute one font family for another. They contain a 10332c393a42Smrg<TT 10342c393a42SmrgCLASS="LITERAL" 1035a6844aabSmrg><family></TT 10362c393a42Smrg> element followed by optional <TT 10372c393a42SmrgCLASS="LITERAL" 1038a6844aabSmrg><prefer></TT 10392c393a42Smrg>, <TT 10402c393a42SmrgCLASS="LITERAL" 1041a6844aabSmrg><accept></TT 10422c393a42Smrg> and <TT 10432c393a42SmrgCLASS="LITERAL" 1044a6844aabSmrg><default></TT 10452c393a42Smrg> 10462c393a42Smrgelements. Fonts matching the <TT 10472c393a42SmrgCLASS="LITERAL" 1048a6844aabSmrg><family></TT 10492c393a42Smrg> element are edited to prepend the 10502c393a42Smrglist of <TT 10512c393a42SmrgCLASS="LITERAL" 1052a6844aabSmrg><prefer></TT 10532c393a42Smrg>ed families before the matching <TT 10542c393a42SmrgCLASS="LITERAL" 1055a6844aabSmrg><family></TT 10562c393a42Smrg>, append the 10572c393a42Smrg<TT 10582c393a42SmrgCLASS="LITERAL" 1059a6844aabSmrg><accept></TT 10602c393a42Smrg>able families after the matching <TT 10612c393a42SmrgCLASS="LITERAL" 1062a6844aabSmrg><family></TT 10632c393a42Smrg> and append the <TT 10642c393a42SmrgCLASS="LITERAL" 1065a6844aabSmrg><default></TT 10662c393a42Smrg> 10672c393a42Smrgfamilies to the end of the family list. 10682c393a42Smrg </P 10692c393a42Smrg></DIV 10702c393a42Smrg><DIV 10712c393a42SmrgCLASS="REFSECT2" 10722c393a42Smrg><A 10732c393a42SmrgNAME="AEN204" 10742c393a42Smrg></A 10752c393a42Smrg><H3 10762c393a42Smrg><TT 10772c393a42SmrgCLASS="LITERAL" 1078a6844aabSmrg><family></TT 10792c393a42Smrg></H3 10802c393a42Smrg><P 10812c393a42Smrg>Holds a single font family name 10822c393a42Smrg </P 10832c393a42Smrg></DIV 10842c393a42Smrg><DIV 10852c393a42SmrgCLASS="REFSECT2" 10862c393a42Smrg><A 10872c393a42SmrgNAME="AEN208" 10882c393a42Smrg></A 10892c393a42Smrg><H3 10902c393a42Smrg><TT 10912c393a42SmrgCLASS="LITERAL" 1092a6844aabSmrg><prefer></TT 10932c393a42Smrg>, <TT 10942c393a42SmrgCLASS="LITERAL" 1095a6844aabSmrg><accept></TT 10962c393a42Smrg>, <TT 10972c393a42SmrgCLASS="LITERAL" 1098a6844aabSmrg><default></TT 10992c393a42Smrg></H3 11002c393a42Smrg><P 11012c393a42Smrg>These hold a list of <TT 11022c393a42SmrgCLASS="LITERAL" 1103a6844aabSmrg><family></TT 11042c393a42Smrg> elements to be used by the <TT 11052c393a42SmrgCLASS="LITERAL" 1106a6844aabSmrg><alias></TT 11072c393a42Smrg> element. 11082c393a42Smrg </P 11092c393a42Smrg></DIV 11102c393a42Smrg></DIV 11112c393a42Smrg><DIV 11122c393a42SmrgCLASS="REFSECT1" 11132c393a42Smrg><A 11142c393a42SmrgNAME="AEN216" 11152c393a42Smrg></A 11162c393a42Smrg><H2 11172c393a42Smrg>EXAMPLE CONFIGURATION FILE</H2 11182c393a42Smrg><DIV 11192c393a42SmrgCLASS="REFSECT2" 11202c393a42Smrg><A 11212c393a42SmrgNAME="AEN218" 11222c393a42Smrg></A 11232c393a42Smrg><H3 11242c393a42Smrg>System configuration file</H3 11252c393a42Smrg><P 11262c393a42Smrg>This is an example of a system-wide configuration file 11272c393a42Smrg </P 1128a6844aabSmrg><TABLE 1129a6844aabSmrgBORDER="0" 1130a6844aabSmrgBGCOLOR="#E0E0E0" 1131a6844aabSmrgWIDTH="100%" 1132a6844aabSmrg><TR 1133a6844aabSmrg><TD 11342c393a42Smrg><PRE 11352c393a42SmrgCLASS="PROGRAMLISTING" 1136a6844aabSmrg><?xml version="1.0"?> 1137a6844aabSmrg<!DOCTYPE fontconfig SYSTEM "fonts.dtd"> 1138a6844aabSmrg<!-- /etc/fonts/fonts.conf file to configure system font access --> 1139a6844aabSmrg<fontconfig> 1140a6844aabSmrg<!-- 11412c393a42Smrg Find fonts in these directories 1142a6844aabSmrg--> 1143a6844aabSmrg<dir>/usr/share/fonts</dir> 1144a6844aabSmrg<dir>/usr/X11R6/lib/X11/fonts</dir> 11452c393a42Smrg 1146a6844aabSmrg<!-- 11472c393a42Smrg Accept deprecated 'mono' alias, replacing it with 'monospace' 1148a6844aabSmrg--> 1149a6844aabSmrg<match target="pattern"> 1150a6844aabSmrg <test qual="any" name="family"><string>mono</string></test> 1151a6844aabSmrg <edit name="family" mode="assign"><string>monospace</string></edit> 1152a6844aabSmrg</match> 11532c393a42Smrg 1154a6844aabSmrg<!-- 11552c393a42Smrg Names not including any well known alias are given 'sans' 1156a6844aabSmrg--> 1157a6844aabSmrg<match target="pattern"> 1158a6844aabSmrg <test qual="all" name="family" mode="not_eq">sans</test> 1159a6844aabSmrg <test qual="all" name="family" mode="not_eq">serif</test> 1160a6844aabSmrg <test qual="all" name="family" mode="not_eq">monospace</test> 1161a6844aabSmrg <edit name="family" mode="append_last"><string>sans</string></edit> 1162a6844aabSmrg</match> 11632c393a42Smrg 1164a6844aabSmrg<!-- 11652c393a42Smrg Load per-user customization file, but don't complain 11662c393a42Smrg if it doesn't exist 1167a6844aabSmrg--> 1168a6844aabSmrg<include ignore_missing="yes">~/.fonts.conf</include> 11692c393a42Smrg 1170a6844aabSmrg<!-- 11712c393a42Smrg Load local customization files, but don't complain 11722c393a42Smrg if there aren't any 1173a6844aabSmrg--> 1174a6844aabSmrg<include ignore_missing="yes">conf.d</include> 1175a6844aabSmrg<include ignore_missing="yes">local.conf</include> 11762c393a42Smrg 1177a6844aabSmrg<!-- 11782c393a42Smrg Alias well known font names to available TrueType fonts. 11792c393a42Smrg These substitute TrueType faces for similar Type1 11802c393a42Smrg faces to improve screen appearance. 1181a6844aabSmrg--> 1182a6844aabSmrg<alias> 1183a6844aabSmrg <family>Times</family> 1184a6844aabSmrg <prefer><family>Times New Roman</family></prefer> 1185a6844aabSmrg <default><family>serif</family></default> 1186a6844aabSmrg</alias> 1187a6844aabSmrg<alias> 1188a6844aabSmrg <family>Helvetica</family> 1189a6844aabSmrg <prefer><family>Arial</family></prefer> 1190a6844aabSmrg <default><family>sans</family></default> 1191a6844aabSmrg</alias> 1192a6844aabSmrg<alias> 1193a6844aabSmrg <family>Courier</family> 1194a6844aabSmrg <prefer><family>Courier New</family></prefer> 1195a6844aabSmrg <default><family>monospace</family></default> 1196a6844aabSmrg</alias> 11972c393a42Smrg 1198a6844aabSmrg<!-- 11992c393a42Smrg Provide required aliases for standard names 12002c393a42Smrg Do these after the users configuration file so that 12012c393a42Smrg any aliases there are used preferentially 1202a6844aabSmrg--> 1203a6844aabSmrg<alias> 1204a6844aabSmrg <family>serif</family> 1205a6844aabSmrg <prefer><family>Times New Roman</family></prefer> 1206a6844aabSmrg</alias> 1207a6844aabSmrg<alias> 1208a6844aabSmrg <family>sans</family> 1209a6844aabSmrg <prefer><family>Arial</family></prefer> 1210a6844aabSmrg</alias> 1211a6844aabSmrg<alias> 1212a6844aabSmrg <family>monospace</family> 1213a6844aabSmrg <prefer><family>Andale Mono</family></prefer> 1214a6844aabSmrg</alias> 1215a6844aabSmrg</fontconfig> 12162c393a42Smrg </PRE 1217a6844aabSmrg></TD 1218a6844aabSmrg></TR 1219a6844aabSmrg></TABLE 12202c393a42Smrg></DIV 12212c393a42Smrg><DIV 12222c393a42SmrgCLASS="REFSECT2" 12232c393a42Smrg><A 12242c393a42SmrgNAME="AEN222" 12252c393a42Smrg></A 12262c393a42Smrg><H3 12272c393a42Smrg>User configuration file</H3 12282c393a42Smrg><P 12292c393a42Smrg>This is an example of a per-user configuration file that lives in 12302c393a42Smrg~/.fonts.conf 12312c393a42Smrg </P 1232a6844aabSmrg><TABLE 1233a6844aabSmrgBORDER="0" 1234a6844aabSmrgBGCOLOR="#E0E0E0" 1235a6844aabSmrgWIDTH="100%" 1236a6844aabSmrg><TR 1237a6844aabSmrg><TD 12382c393a42Smrg><PRE 12392c393a42SmrgCLASS="PROGRAMLISTING" 1240a6844aabSmrg><?xml version="1.0"?> 1241a6844aabSmrg<!DOCTYPE fontconfig SYSTEM "fonts.dtd"> 1242a6844aabSmrg<!-- ~/.fonts.conf for per-user font configuration --> 1243a6844aabSmrg<fontconfig> 12442c393a42Smrg 1245a6844aabSmrg<!-- 12462c393a42Smrg Private font directory 1247a6844aabSmrg--> 1248a6844aabSmrg<dir>~/.fonts</dir> 12492c393a42Smrg 1250a6844aabSmrg<!-- 12512c393a42Smrg use rgb sub-pixel ordering to improve glyph appearance on 12522c393a42Smrg LCD screens. Changes affecting rendering, but not matching 12532c393a42Smrg should always use target="font". 1254a6844aabSmrg--> 1255a6844aabSmrg<match target="font"> 1256a6844aabSmrg <edit name="rgba" mode="assign"><const>rgb</const></edit> 1257a6844aabSmrg</match> 1258a6844aabSmrg</fontconfig> 12592c393a42Smrg </PRE 1260a6844aabSmrg></TD 1261a6844aabSmrg></TR 1262a6844aabSmrg></TABLE 12632c393a42Smrg></DIV 12642c393a42Smrg></DIV 12652c393a42Smrg><DIV 12662c393a42SmrgCLASS="REFSECT1" 12672c393a42Smrg><A 12682c393a42SmrgNAME="AEN226" 12692c393a42Smrg></A 12702c393a42Smrg><H2 12712c393a42Smrg>Files</H2 12722c393a42Smrg><P 12732c393a42Smrg><I 12742c393a42SmrgCLASS="EMPHASIS" 12752c393a42Smrg>fonts.conf</I 12762c393a42Smrg> 12772c393a42Smrgcontains configuration information for the fontconfig library 12782c393a42Smrgconsisting of directories to look at for font information as well as 12792c393a42Smrginstructions on editing program specified font patterns before attempting to 12802c393a42Smrgmatch the available fonts. It is in xml format. 12812c393a42Smrg </P 12822c393a42Smrg><P 12832c393a42Smrg><I 12842c393a42SmrgCLASS="EMPHASIS" 12852c393a42Smrg>conf.d</I 12862c393a42Smrg> 12872c393a42Smrgis the conventional name for a directory of additional configuration files 12882c393a42Smrgmanaged by external applications or the local administrator. The 12892c393a42Smrgfilenames starting with decimal digits are sorted in lexicographic order 12902c393a42Smrgand used as additional configuration files. All of these files are in xml 12912c393a42Smrgformat. The master fonts.conf file references this directory in an 1292a6844aabSmrg<include> directive. 12932c393a42Smrg </P 12942c393a42Smrg><P 12952c393a42Smrg><I 12962c393a42SmrgCLASS="EMPHASIS" 12972c393a42Smrg>fonts.dtd</I 12982c393a42Smrg> 12992c393a42Smrgis a DTD that describes the format of the configuration files. 13002c393a42Smrg </P 13012c393a42Smrg><P 1302a6844aabSmrg><I 1303a6844aabSmrgCLASS="EMPHASIS" 1304a6844aabSmrg>~/.fonts.conf.d</I 1305a6844aabSmrg> 1306a6844aabSmrgis the conventional name for a per-user directory of (typically 1307a6844aabSmrgauto-generated) configuration files, although the 1308a6844aabSmrgactual location is specified in the global fonts.conf file. 1309a6844aabSmrg </P 1310a6844aabSmrg><P 13112c393a42Smrg><I 13122c393a42SmrgCLASS="EMPHASIS" 13132c393a42Smrg>~/.fonts.conf</I 13142c393a42Smrg> 13152c393a42Smrgis the conventional location for per-user font configuration, although the 13162c393a42Smrgactual location is specified in the global fonts.conf file. 13172c393a42Smrg </P 13182c393a42Smrg><P 13192c393a42Smrg><I 13202c393a42SmrgCLASS="EMPHASIS" 13212c393a42Smrg> ~/.fonts.cache-*</I 13222c393a42Smrg> 13232c393a42Smrgis the conventional repository of font information that isn't found in the 13242c393a42Smrgper-directory caches. This file is automatically maintained by fontconfig. 13252c393a42Smrg </P 13262c393a42Smrg></DIV 13272c393a42Smrg><DIV 13282c393a42SmrgCLASS="REFSECT1" 13292c393a42Smrg><A 1330a6844aabSmrgNAME="AEN240" 13312c393a42Smrg></A 13322c393a42Smrg><H2 13332c393a42Smrg>See Also</H2 13342c393a42Smrg><P 1335a6844aabSmrg>fc-cat(1), fc-cache(1), fc-list(1), fc-match(1), fc-query(1) 13362c393a42Smrg </P 13372c393a42Smrg></DIV 13382c393a42Smrg><DIV 13392c393a42SmrgCLASS="REFSECT1" 13402c393a42Smrg><A 1341a6844aabSmrgNAME="AEN243" 13422c393a42Smrg></A 13432c393a42Smrg><H2 13442c393a42Smrg>Version</H2 13452c393a42Smrg><P 1346a6844aabSmrg>Fontconfig version 2.8.0 13472c393a42Smrg 13482c393a42Smrg </P 13492c393a42Smrg></DIV 13502c393a42Smrg></BODY 13512c393a42Smrg></HTML 13522c393a42Smrg>