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/* Definitions for Unicode character-translations */ #ifndef UCDEFS_H #define UCDEFS_H #ifndef HTUTILS_H #include <HTUtils.h> #endif typedef struct _LYUCcharset { int UChndl; /* -1 for "old" charsets, >= 0 for chartrans tables */ const char *MIMEname; int enc; int codepage; /* if positive, an IBM OS/2 specific number; if negative, flag for no table translation */ /* parameters below are not used by chartrans mechanism, */ /* they describe some relationships against built-in Latin1 charset... */ int repertoire; /* unused */ int codepoints; /* subset/superset of Latin1 ? */ int cpranges; /* unused, obsolete by LYlowest_eightbit; "which ranges have valid displayable chars (including nbsp and shy)" */ int like8859; /* currently used for nbsp and shy only (but UCT_R_8859SPECL assumed for any UCT_R_8BIT...); "for which ranges is it like 8859-1" */ } LYUCcharset; #define UCT_ENC_7BIT 0 #define UCT_ENC_8BIT 1 #define UCT_ENC_8859 2 /* no displayable chars in 0x80-0x9F */ #define UCT_ENC_8BIT_C0 3 /* 8-bit + some chars in C0 control area */ #define UCT_ENC_MAYBE2022 4 #define UCT_ENC_CJK 5 #define UCT_ENC_16BIT 6 #define UCT_ENC_UTF8 7 #define UCT_REP_SUBSETOF_LAT1 0x01 #define UCT_REP_SUPERSETOF_LAT1 0x02 #define UCT_REP_IS_LAT1 UCT_REP_SUBSETOF_LAT1 | UCT_REP_SUPERSETOF_LAT1 /* * Assume everything we deal with is included in the UCS2 reperoire, * so a flag for _REP_SUBSETOF_UCS2 would be redundant. */ /* * More general description how the code points relate to 8859-1 and UCS: */ #define UCT_CP_SUBSETOF_LAT1 0x01 /* implies UCT_CP_SUBSETOF_UCS2 */ #define UCT_CP_SUPERSETOF_LAT1 0x02 #define UCT_CP_SUBSETOF_UCS2 0x04 #define UCT_CP_IS_LAT1 UCT_CP_SUBSETOF_LAT1 | UCT_CP_SUPERSETOF_LAT1 /* * More specific bitflags for practically important code point ranges: */ #define UCT_R_LOWCTRL 0x08 /* 0x00-0x1F, for completeness */ #define UCT_R_7BITINV 0x10 /* invariant???, displayable 7bit chars */ #define UCT_R_7BITNAT 0x20 /* displayable 7bit, national??? */ #define UCT_R_HIGHCTRL 0x40 /* chars in 0x80-0x9F range */ #define UCT_R_8859SPECL 0x80 /* special chars in 8859-x sets: nbsp and shy */ #define UCT_R_HIGH8BIT 0x100 /* rest of 0xA0-0xFF range */ #define UCT_R_ASCII UCT_R_7BITINV | UCT_R_7BITNAT /* displayable US-ASCII */ #define UCT_R_LAT1 UCT_R_ASCII | UCT_R_8859SPECL | UCT_R_HIGH8BIT #define UCT_R_8BIT UCT_R_LAT1 | UCT_R_HIGHCTRL /* full 8bit range */ /* * For the following some comments are in HTAnchor.c. */ #define UCT_STAGE_MIME 0 #define UCT_STAGE_PARSER 1 /* What the parser (SGML.c) gets to see */ #define UCT_STAGE_STRUCTURED 2 /* What the structured stream (HTML) gets fed */ #define UCT_STAGE_HTEXT 3 /* What gets fed to the HText_* functions */ #define UCT_STAGEMAX 4 #define UCT_SETBY_NONE 0 #define UCT_SETBY_DEFAULT 1 #define UCT_SETBY_LINK 2 /* set by A or LINK CHARSET= hint */ #define UCT_SETBY_STRUCTURED 3 /* structured stream stage (HTML.c) */ #define UCT_SETBY_PARSER 4 /* set by SGML parser or similar */ #define UCT_SETBY_MIME 5 /* set explicitly by MIME charset parameter */ typedef struct _UCStageInfo { int lock; /* by what it has been set */ int LYhndl; LYUCcharset C; } UCStageInfo; typedef struct _UCAnchorInfo { struct _UCStageInfo s[UCT_STAGEMAX]; } UCAnchorInfo; #endif /* UCDEFS_H */


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