/* $Id: main.c,v 1.32 2015/02/23 12:28:20 kristaps Exp $ */ /* * Copyright (c) 2015 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "extern.h" #define SECTSZ 4 static const char *const sects[SECTSZ] = { "Sh", "Ss", "Em", "No", }; static void doaccent(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doblock(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dobracket(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dobye(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dodefindex(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dodefn(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dodisplay(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doenumerate(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doexample(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doignargn(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doignblock(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doignbracket(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doignline(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doinline(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doinclude(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doitem(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doitemize(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dolink(struct texi *, enum texicmd, const char *, size_t, size_t *); static void domacro(struct texi *, enum texicmd, const char *, size_t, size_t *); static void domath(struct texi *, enum texicmd, const char *, size_t, size_t *); static void domultitable(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doquotation(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dotable(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dotop(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosecoffs(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosection(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosp(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosubsection(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosubsubsection(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dosymbol(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dotab(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dotitle(struct texi *, enum texicmd, const char *, size_t, size_t *); static void dovalue(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doverb(struct texi *, enum texicmd, const char *, size_t, size_t *); static void doverbinclude(struct texi *, enum texicmd, const char *, size_t, size_t *); static const struct texitok __texitoks[TEXICMD__MAX] = { /* TEXICMD__BEGIN */ { doignargn, "acronym", 7 }, /* TEXICMD_ACRONYM */ { doaccent, "'", 1 }, /* TEXICMD_ACUTE */ { doignline, "afourpaper", 10 }, /* TEXICMD_A4PAPER */ { doignbracket, "anchor", 6 }, /* TEXICMD_ANCHOR */ { dosection, "appendix", 8 }, /* TEXICMD_APPENDIX */ { dosection, "appendixsec", 11 }, /* TEXICMD_APPENDIXSEC */ { dosubsection, "appendixsubsec", 14 }, /* TEXICMD_APPENDIXSUBSEC */ { dosubsubsection, "appendixsubsubsec", 17 }, /* TEXICMD_APPENDIXSUBSUBSEC */ { doinline, "asis", 4 }, /* TEXICMD_ASIS */ { dosymbol, "*", 1 }, /* TEXICMD_ASTERISK */ { dosymbol, "@", 1 }, /* TEXICMD_AT */ { doignline, "author", 6 }, /* TEXICMD_AUTHOR */ { doinline, "b", 1 }, /* TEXICMD_BOLD */ { dosymbol, "!", 1 }, /* TEXICMD_BANG */ { dosymbol, "bullet", 6 }, /* TEXICMD_BULLET */ { dobye, "bye", 3 }, /* TEXICMD_BYE */ { doignline, "center", 6 }, /* TEXICMD_CENTER */ { dosection, "chapter", 7 }, /* TEXICMD_CHAPTER */ { doignline, "cindex", 6 }, /* TEXICMD_CINDEX */ { doaccent, "^", 1 }, /* TEXICMD_CIRCUMFLEX */ { doinline, "cite", 4 }, /* TEXICMD_CITE */ { dovalue, "clear", 5 }, /* TEXICMD_CLEAR */ { doinline, "code", 4 }, /* TEXICMD_CODE */ { dosymbol, ":", 1 }, /* TEXICMD_COLON */ { NULL, "columnfractions", 15 }, /* TEXICMD_COLUMNFRACTIONS */ { doinline, "command", 7 }, /* TEXICMD_COMMAND */ { doignline, "c", 1 }, /* TEXICMD_COMMENT */ { doignline, "comment", 7 }, /* TEXICMD_COMMENT_LONG */ { doignline, "contents", 8 }, /* TEXICMD_CONTENTS */ { doignblock, "copying", 7 }, /* TEXICMD_COPYING */ { dosymbol, "copyright", 9 }, /* TEXICMD_COPYRIGHT */ { dodefindex, "defcodeindex", 12 }, /* TEXICMD_DEFCODEINDEX */ { dodefn, "deffn", 5 }, /* TEXICMD_DEFFN */ { dodefn, "deffnx", 6 }, /* TEXICMD_DEFFNX */ { dodefindex, "defindex", 8 }, /* TEXICMD_DEFINDEX */ { dodefn, "defmac", 6 }, /* TEXICMD_DEFMAC */ { dodefn, "defmacx", 7 }, /* TEXICMD_DEFMACX */ { dodefn, "deftp", 5 }, /* TEXICMD_DEFTP */ { dodefn, "deftpx", 6 }, /* TEXICMD_DEFTPX */ { dodefn, "deftypefn", 9 }, /* TEXICMD_DEFTYPEFN */ { dodefn, "deftypefnx", 10 }, /* TEXICMD_DEFTYPEFNX */ { dodefn, "deftypefun", 10 }, /* TEXICMD_DEFTYPEFUN */ { dodefn, "deftypefunx", 11 }, /* TEXICMD_DEFTYPEFUNX */ { dodefn, "deftypevar", 10 }, /* TEXICMD_DEFTYPEVAR */ { dodefn, "deftypevarx", 11 }, /* TEXICMD_DEFTYPEVARX */ { dodefn, "deftypevr", 9 }, /* TEXICMD_DEFTYPEVR */ { dodefn, "deftypevrx", 10 }, /* TEXICMD_DEFTYPEVRX */ { dodefn, "defun", 5 }, /* TEXICMD_DEFUN */ { dodefn, "defunx", 6 }, /* TEXICMD_DEFUNX */ { dodefn, "defvar", 6 }, /* TEXICMD_DEFVAR */ { dodefn, "defvarx", 7 }, /* TEXICMD_DEFVARX */ { dodefn, "defvr", 5 }, /* TEXICMD_DEFVR */ { dodefn, "defvrx", 6 }, /* TEXICMD_DEFVRX */ { doignblock, "detailmenu", 10 }, /* TEXICMD_DETAILMENU */ { doinline, "dfn", 3 }, /* TEXICMD_DFN */ { doignline, "dircategory", 11 }, /* TEXICMD_DIRCATEGORY */ { doignblock, "direntry", 8 }, /* TEXICMD_DIRENTRY */ { dodisplay, "display", 7 }, /* TEXICMD_DISPLAY */ { doignbracket, "dmn", 3 }, /* TEXICMD_DMN */ { dosymbol, "dots", 4 }, /* TEXICMD_DOTS */ { dolink, "email", 5 }, /* TEXICMD_EMAIL */ { doinline, "emph", 4 }, /* TEXICMD_EMPH */ { NULL, "end", 3 }, /* TEXICMD_END */ { doenumerate, "enumerate", 9 }, /* TEXICMD_ENUMERATE */ { doinline, "env", 3 }, /* TEXICMD_ENV */ { dosymbol, "equiv", 5 }, /* TEXICMD_EQUIV */ { dosymbol, "error", 5 }, /* TEXICMD_ERROR */ { doexample, "example", 7 }, /* TEXICMD_EXAMPLE */ { doignline, "exdent", 6 }, /* TEXICMD_EXDENT */ { dosymbol, "expansion", 9 }, /* TEXICMD_EXPANSION */ { doinline, "file", 4 }, /* TEXICMD_FILE */ { doignline, "finalout", 8 }, /* TEXICMD_FINALOUT */ { doignline, "findex", 6 }, /* TEXICMD_FINDEX */ { doignbracket, "footnote", 8 }, /* TEXICMD_FOOTNOTE */ { dotable, "ftable", 6 }, /* TEXICMD_FTABLE */ { dodisplay, "format", 6 }, /* TEXICMD_FORMAT */ { doaccent, "`", 1 }, /* TEXICMD_GRAVE */ { doblock, "group", 5 }, /* TEXICMD_GROUP */ { dosection, "heading", 7 }, /* TEXICMD_HEADING */ { doignline, "headings", 8 }, /* TEXICMD_HEADINGS */ { doitem, "headitem", 8 }, /* TEXICMD_HEADITEM */ { doignblock, "html", 4 }, /* TEXICMD_HTML */ { dosymbol, "-", 1 }, /* TEXICMD_HYPHEN */ { doinline, "i", 1 }, /* TEXICMD_I */ { dovalue, "ifclear", 7 }, /* TEXICMD_IFCLEAR */ { doignblock, "ifdocbook", 9 }, /* TEXICMD_IFDOCBOOK */ { doignblock, "ifhtml", 6 }, /* TEXICMD_IFHTML */ { doblock, "ifinfo", 6 }, /* TEXICMD_IFINFO */ { doblock, "ifnotdocbook", 12 }, /* TEXICMD_IFNOTDOCBOOK */ { doblock, "ifnothtml", 9 }, /* TEXICMD_IFNOTHTML */ { doblock, "ifnotinfo", 9 }, /* TEXICMD_IFNOTINFO */ { doignblock, "ifnotplaintext", 14 }, /* TEXICMD_IFNOTPLAINTEXT */ { doblock, "ifnottex", 8 }, /* TEXICMD_IFNOTTEX */ { doblock, "ifnotxml", 8 }, /* TEXICMD_IFNOTXML */ { doblock, "ifplaintext", 11 }, /* TEXICMD_IFPLAINTEXT */ { doignblock, "iftex", 5 }, /* TEXICMD_IFTEX */ { dovalue, "ifset", 5 }, /* TEXICMD_IFSET */ { doignblock, "ifxml", 5 }, /* TEXICMD_IFXML */ { doignblock, "ignore", 6 }, /* TEXICMD_IGNORE */ { doignbracket, "image", 5 }, /* TEXICMD_IMAGE */ { doinclude, "include", 7 }, /* TEXICMD_INCLUDE */ { dodisplay, "indentblock", 11 }, /* TEXICMD_INDENTBLOCK */ { doignline, "", 0 }, /* TEXICMD_USER_INDEX */ { doignline, "insertcopying", 13 }, /* TEXICMD_INSERTCOPYING */ { doitem, "item", 4 }, /* TEXICMD_ITEM */ { doitemize, "itemize", 7 }, /* TEXICMD_ITEMIZE */ { doitem, "itemx", 5 }, /* TEXICMD_ITEMX */ { doinline, "kbd", 3 }, /* TEXICMD_KBD */ { dobracket, "key", 3 }, /* TEXICMD_KEY */ { doignline, "kindex", 6 }, /* TEXICMD_KINDEX */ { dosymbol, "LaTeX", 5 }, /* TEXICMD_LATEX */ { dosecoffs, "lowersections", 13 }, /* TEXICMD_LOWERSECTIONS */ { domacro, "macro", 5 }, /* TEXICMD_MACRO */ { domath, "math", 4 }, /* TEXICMD_MATH */ { doignblock, "menu", 4 }, /* TEXICMD_MENU */ { dosymbol, "minus", 5 }, /* TEXICMD_MINUS */ { domultitable, "multitable", 10 }, /* TEXICMD_MULTITABLE */ { doignline, "need", 4 }, /* TEXICMD_NEED */ { dosymbol, "\n", 1 }, /* TEXICMD_NEWLINE */ { doignline, "node", 4 }, /* TEXICMD_NODE */ { doignline, "noindent", 8 }, /* TEXICMD_NOINDENT */ { doinline, "option", 6 }, /* TEXICMD_OPTION */ { dolink, "pxref", 5 }, /* TEXICMD_PXREF */ { dosymbol, "?", 1 }, /* TEXICMD_QUESTIONMARK */ { doquotation, "quotation", 9 }, /* TEXICMD_QUOTATION */ { doignline, "page", 4 }, /* TEXICMD_PAGE */ { doignline, "paragraphindent", 15 }, /* TEXICMD_PARINDENT */ { dosymbol, ".", 1 }, /* TEXICMD_PERIOD */ { doignline, "pindex", 6 }, /* TEXICMD_PINDEX */ { doignline, "printindex", 10 }, /* TEXICMD_PRINTINDEX */ { doinline, "r", 1 }, /* TEXICMD_R */ { dosecoffs, "raisesections", 13 }, /* TEXICMD_RAISESECTIONS */ { dobracket, "ref", 3 }, /* TEXICMD_REF */ { doignline, "refill", 6 }, /* TEXICMD_REFILL */ { dosymbol, "result", 6 }, /* TEXICMD_RESULT */ { doinline, "samp", 4 }, /* TEXICMD_SAMP */ { doinline, "sansserif", 9 }, /* TEXICMD_SANSSERIF */ { dobracket, "sc", 2 }, /* TEXICMD_SC */ { dosection, "section", 7 }, /* TEXICMD_SECTION */ { dovalue, "set", 3 }, /* TEXICMD_SET */ { doignline, "setchapternewpage", 17 }, /* TEXICMD_SETCHAPNEWPAGE */ { doignline, "setfilename", 11 }, /* TEXICMD_SETFILENAME */ { dotitle, "settitle", 8 }, /* TEXICMD_SETTITLE */ { doignline, "shortcontents", 13 }, /* TEXICMD_SHORTCONTENTS */ { doinline, "slanted", 7 }, /* TEXICMD_SLANTED */ { dosp, "sp", 2 }, /* TEXICMD_SP */ { dosymbol, " ", 1 }, /* TEXICMD_SPACE */ { doignline, "smallbook", 9 }, /* TEXICMD_SMALLBOOK */ { dodisplay, "smalldisplay", 12 }, /* TEXICMD_SMALLDISPLAY */ { doexample, "smallexample", 12 }, /* TEXICMD_SMALLEXAMPLE */ { dodisplay, "smallformat", 11 }, /* TEXICMD_SMALLFORMAT */ { dodisplay, "smallindentblock", 16 }, /* TEXICMD_SMALLINDENTBLOCK */ { dosymbol, "{", 1 }, /* TEXICMD_SQUIGGLE_LEFT */ { dosymbol, "}", 1 }, /* TEXICMD_SQUIGGLE_RIGHT */ { doinline, "strong", 6 }, /* TEXICMD_STRONG */ { dosubsection, "subheading", 10 }, /* TEXICMD_SUBHEADING */ { dosubsection, "subsection", 10 }, /* TEXICMD_SUBSECTION */ { dosubsubsection, "subsubheading", 13 }, /* TEXICMD_SUBSUBHEADING */ { dosubsubsection, "subsubsection", 13 }, /* TEXICMD_SUBSUBSECTION */ { doignline, "subtitle", 8 }, /* TEXICMD_SUBTITLE */ { doignline, "summarycontents", 15 }, /* TEXICMD_SUMMARYCONTENTS */ { doignline, "synindex", 8 }, /* TEXICMD_SYNINDEX */ { doignline, "syncodeindex", 12 }, /* TEXICMD_SYNCODEINDEX */ { doinline, "t", 1 }, /* TEXICMD_T */ { dotab, "tab", 3 }, /* TEXICMD_TAB */ { dosymbol, "\t", 1 }, /* TEXICMD_TABSYM */ { dotable, "table", 5 }, /* TEXICMD_TABLE */ { doignblock, "tex", 3 }, /* TEXICMD_TEX */ { dosymbol, "TeX", 3 }, /* TEXICMD_TEXSYM */ { doaccent, "~", 1 }, /* TEXICMD_TILDE */ { doignline, "tindex", 6 }, /* TEXICMD_TINDEX */ { doignline, "title", 5 }, /* TEXICMD_TITLE */ { dobracket, "titlefont", 9 }, /* TEXICMD_TITLEFONT */ { doignblock, "titlepage", 9 }, /* TEXICMD_TITLEPAGE */ { dotop, "top", 3 }, /* TEXICMD_TOP */ { doaccent, "\"", 1 }, /* TEXICMD_UMLAUT */ { dosection, "unnumbered", 10 }, /* TEXICMD_UNNUMBERED */ { dosection, "unnumberedsec", 13 }, /* TEXICMD_UNNUMBEREDSEC */ { dosubsection, "unnumberedsubsec", 16 }, /* TEXICMD_UNNUMBEREDSUBSEC */ { dosubsubsection, "unnumberedsubsubsec", 19 }, /* TEXICMD_UNNUMBEREDSUBSUBSEC */ { dolink, "uref", 4 }, /* TEXICMD_UREF */ { dolink, "url", 3 }, /* TEXICMD_URL */ { dovalue, "value", 5 }, /* TEXICMD_VALUE */ { doinline, "var", 3 }, /* TEXICMD_VAR */ { doverb, "verbatim", 8 }, /* TEXICMD_VERBATIM */ { doverbinclude, "verbatiminclude", 15 }, /* TEXICMD_VERBATIMINCLUDE */ { doignline, "vindex", 6 }, /* TEXICMD_VINDEX */ { dosp, "vskip", 5 }, /* TEXICMD_VSKIP */ { dotable, "vtable", 6 }, /* TEXICMD_VTABLE */ { dobracket, "w", 1 }, /* TEXICMD_W */ { dolink, "xref", 4 }, /* TEXICMD_XREF */ /* TEXICMD__END */ }; const struct texitok *const texitoks = __texitoks; static void dodefindex(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { size_t start, end; char *cp; while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); start = end = *pos; while (end < sz && ! ismspace(buf[end])) end++; if (start == end) { advanceeoln(p, buf, sz, pos, 1); return; } else if (NULL == (cp = malloc(end - start + 1))) texiabort(p, NULL); memcpy(cp, &buf[start], end - start); cp[end - start] = '\0'; p->indexs = realloc(p->indexs, sizeof(char *) * (p->indexsz + 1)); if (NULL == p->indexs) texiabort(p, NULL); p->indexs[p->indexsz++] = cp; } static void dodefn(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { const char *blk; blk = NULL; switch (cmd) { case (TEXICMD_DEFFN): case (TEXICMD_DEFTP): case (TEXICMD_DEFTYPEFN): case (TEXICMD_DEFTYPEFUN): case (TEXICMD_DEFTYPEVAR): case (TEXICMD_DEFTYPEVR): case (TEXICMD_DEFUN): case (TEXICMD_DEFVAR): case (TEXICMD_DEFVR): blk = texitoks[cmd].tok; break; default: break; } if (p->ign) { NULL != blk ? parseto(p, buf, sz, pos, blk) : parseeoln(p, buf, sz, pos); return; } if (NULL != blk) texivspace(p); switch (cmd) { case (TEXICMD_DEFMAC): case (TEXICMD_DEFMACX): texiputchars(p, "Macro"); break; case (TEXICMD_DEFTYPEVAR): case (TEXICMD_DEFTYPEVARX): case (TEXICMD_DEFVAR): case (TEXICMD_DEFVARX): texiputchars(p, "Variable"); break; case (TEXICMD_DEFTYPEFUN): case (TEXICMD_DEFTYPEFUNX): case (TEXICMD_DEFUN): case (TEXICMD_DEFUNX): texiputchars(p, "Function"); break; default: parselinearg(p, buf, sz, pos); break; } texiputchars(p, ":\n"); switch (cmd) { case (TEXICMD_DEFMAC): case (TEXICMD_DEFMACX): teximacroopen(p, "Dv"); while (parselinearg(p, buf, sz, pos)) /* Spin. */ ; teximacroclose(p); break; case (TEXICMD_DEFFN): case (TEXICMD_DEFFNX): case (TEXICMD_DEFUN): case (TEXICMD_DEFUNX): teximacroopen(p, "Fo"); parselinearg(p, buf, sz, pos); teximacroclose(p); teximacroopen(p, "Fa"); while (parselinearg(p, buf, sz, pos)) /* Spin. */ ; teximacroclose(p); teximacro(p, "Fc"); break; case (TEXICMD_DEFTYPEFUN): case (TEXICMD_DEFTYPEFUNX): case (TEXICMD_DEFTYPEFN): case (TEXICMD_DEFTYPEFNX): teximacroopen(p, "Ft"); parselinearg(p, buf, sz, pos); teximacroclose(p); teximacroopen(p, "Fo"); parselinearg(p, buf, sz, pos); teximacroclose(p); teximacroopen(p, "Fa"); while (parselinearg(p, buf, sz, pos)) /* Spin. */ ; teximacroclose(p); teximacro(p, "Fc"); break; case (TEXICMD_DEFTP): case (TEXICMD_DEFTPX): case (TEXICMD_DEFTYPEVAR): case (TEXICMD_DEFTYPEVARX): case (TEXICMD_DEFTYPEVR): case (TEXICMD_DEFTYPEVRX): teximacroopen(p, "Vt"); while (parselinearg(p, buf, sz, pos)) /* Spin. */ ; teximacroclose(p); break; case (TEXICMD_DEFVAR): case (TEXICMD_DEFVARX): case (TEXICMD_DEFVR): case (TEXICMD_DEFVRX): teximacroopen(p, "Va"); while (parselinearg(p, buf, sz, pos)) /* Spin. */ ; teximacroclose(p); break; default: abort(); } texivspace(p); if (NULL != blk) parseto(p, buf, sz, pos, blk); } static void domacro(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { size_t start, end, endtoksz, len; struct teximacro m; const char *endtok, *blk; memset(&m, 0, sizeof(struct teximacro)); while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); for (start = end = *pos; end < sz; end++) if (ismspace(buf[end]) || '{' == buf[end]) break; if (start == end) texierr(p, "zero-length macro name"); advanceto(p, buf, pos, end); m.key = malloc(end - start + 1); if (NULL == m.key) texiabort(p, NULL); memcpy(m.key, &buf[start], end - start); m.key[end - start] = '\0'; m.args = argparse(p, buf, sz, pos, &m.argsz, 0); advanceeoln(p, buf, sz, pos, 0); start = *pos; endtok = "\n@end macro\n"; endtoksz = strlen(endtok); blk = memmem(&buf[start], sz, endtok, endtoksz); if (NULL == blk) texierr(p, "unterminated macro body"); while (&buf[*pos] != blk) advance(p, buf, pos); assert('\n' == buf[*pos]); advance(p, buf, pos); len = blk - &buf[start]; m.value = malloc(len + 1); if (NULL == m.value) texiabort(p, NULL); memcpy(m.value, &buf[start], len); m.value[len] = '\0'; p->macros = realloc (p->macros, (p->macrosz + 1) * sizeof(struct teximacro)); if (NULL == p->macros) texiabort(p, NULL); p->macros[p->macrosz++] = m; advanceeoln(p, buf, sz, pos, 1); } static void doignblock(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { char end[32]; const char *term; size_t endsz, endpos; /* * We want to completely ignore everything in these blocks, so * simply jump to the @end block. */ endsz = snprintf(end, sizeof(end), "\n@end %s\n", texitoks[cmd].tok); assert(endsz < sizeof(end)); /* * Look up where our end token occurs. * Set our end position based on the relative offset of that * from our current position, or the EOF if we don't have a * proper ending point. */ term = memmem(&buf[*pos], sz, end, endsz); endpos = NULL == term ? sz : *pos + term - &buf[*pos]; assert(endpos <= sz); while (*pos < endpos) advance(p, buf, pos); /* Only do this if we're not already at the end. */ if (endpos < sz) advanceto(p, buf, pos, endpos + endsz); } static void doblock(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { parseto(p, buf, sz, pos, texitoks[cmd].tok); } static void doinline(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { const char *macro = NULL; switch (cmd) { case (TEXICMD_CODE): case (TEXICMD_KBD): case (TEXICMD_SAMP): case (TEXICMD_T): macro = "Li"; break; case (TEXICMD_CITE): case (TEXICMD_DFN): case (TEXICMD_EMPH): case (TEXICMD_I): case (TEXICMD_SLANTED): macro = "Em"; break; case (TEXICMD_B): case (TEXICMD_STRONG): macro = "Sy"; break; case (TEXICMD_COMMAND): macro = "Xr"; break; case (TEXICMD_ENV): macro = "Ev"; break; case (TEXICMD_FILE): macro = "Pa"; break; case (TEXICMD_OPTION): macro = "Op"; break; case (TEXICMD_VAR): macro = "Va"; break; default: break; } if (NULL == macro || p->literal || TEXILIST_TABLE == p->list) { parsebracket(p, buf, sz, pos); return; } teximacroopen(p, macro); p->seenws = 0; parsebracket(p, buf, sz, pos); texipunctuate(p, buf, sz, pos); teximacroclose(p); } static void doverb(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { const char *end, *term; size_t endsz, endpos; advanceeoln(p, buf, sz, pos, 1); /* We end at exactly this token. */ end = "\n@end verbatim\n"; endsz = strlen(end); /* * Look up where our end token occurs. * Set our end position based on the relative offset of that * from our current position. */ term = memmem(&buf[*pos], sz, end, endsz); endpos = NULL == term ? sz : *pos + term - &buf[*pos]; teximacro(p, "Bd -literal -offset indent"); assert(endpos <= sz); while (*pos < endpos) { if (buf[*pos] == '\n') p->outcol = 0; else p->outcol++; if (*pos > 0 && '.' == buf[*pos]) if ('\n' == buf[*pos - 1]) fputs("\\&", stdout); putchar(buf[*pos]); if ('\\' == buf[*pos]) putchar('e'); advance(p, buf, pos); } teximacro(p, "Ed"); advanceto(p, buf, pos, endpos + endsz); } static void doverbinclude(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { char fname[PATH_MAX], path[PATH_MAX]; int rc; size_t i, end; const char *v; enum texicmd type; while (*pos < sz && ' ' == buf[*pos]) advance(p, buf, pos); for (i = 0; *pos < sz && '\n' != buf[*pos]; ) { if (i == sizeof(fname) - 1) break; if ('@' != buf[*pos]) { fname[i++] = buf[*pos]; advance(p, buf, pos); continue; } type = texicmd(p, buf, *pos, sz, &end, NULL); advanceto(p, buf, pos, end); if (TEXICMD_VALUE != type) texierr(p, "unknown verbatiminclude command"); v = valueblookup(p, buf, sz, pos); if (NULL == v) continue; while ('\0' != *v) { if (i == sizeof(fname) - 1) break; fname[i++] = *v++; } if ('\0' != *v) break; } if (i == 0) texierr(p, "path too short"); else if ('\n' != buf[*pos]) texierr(p, "path too long"); else if ('/' == fname[0]) texierr(p, "no absolute paths"); fname[i] = '\0'; if (strstr(fname, "../") || strstr(fname, "/..")) texierr(p, "insecure path"); rc = snprintf(path, sizeof(path), "%s/%s", p->dirs[0], fname); if (rc < 0) texierr(p, "couldn't format path"); else if ((size_t)rc >= sizeof(path)) texierr(p, "path too long"); parsefile(p, path, 0); } static void doinclude(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { char fname[PATH_MAX], path[PATH_MAX]; size_t i, end; int rc; const char *v; enum texicmd type; while (*pos < sz && ' ' == buf[*pos]) advance(p, buf, pos); /* Read in the filename. */ for (i = 0; *pos < sz && '\n' != buf[*pos]; ) { if (i == sizeof(fname) - 1) break; if ('@' != buf[*pos]) { fname[i++] = buf[*pos]; advance(p, buf, pos); continue; } type = texicmd(p, buf, *pos, sz, &end, NULL); advanceto(p, buf, pos, end); if (TEXICMD_VALUE != type) texierr(p, "unknown include command"); v = valueblookup(p, buf, sz, pos); if (NULL == v) continue; while ('\0' != *v) { if (i == sizeof(fname) - 1) break; fname[i++] = *v++; } if ('\0' != *v) break; } if (i == 0) texierr(p, "path too short"); else if ('\n' != buf[*pos]) texierr(p, "path too long"); else if ('/' == fname[0]) texierr(p, "no absolute paths"); fname[i] = '\0'; if (strstr(fname, "../") || strstr(fname, "/..")) texierr(p, "insecure path"); for (i = 0; i < p->dirsz; i++) { rc = snprintf(path, sizeof(path), "%s/%s", p->dirs[i], fname); if (rc < 0) texierr(p, "couldn't format path"); else if ((size_t)rc >= sizeof(path)) texierr(p, "path too long"); else if (-1 == access(path, R_OK)) continue; parsefile(p, path, 1); return; } texierr(p, "couldn't find %s in includes", fname); } static void dobracket(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { parsebracket(p, buf, sz, pos); } static void dodisplay(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { switch (cmd) { case (TEXICMD_FORMAT): case (TEXICMD_SMALLFORMAT): teximacro(p, "Bd -filled"); break; default: teximacro(p, "Bd -filled -offset indent"); break; } p->seenvs = 1; /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); parseto(p, buf, sz, pos, texitoks[cmd].tok); teximacro(p, "Ed"); } static void doexample(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { teximacro(p, "Bd -literal -offset indent"); /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); p->literal++; parseto(p, buf, sz, pos, texitoks[cmd].tok); p->literal--; teximacro(p, "Ed"); } static void dobye(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { texiexit(p); exit(EXIT_SUCCESS); } static void dotitle(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { size_t start, end; while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); start = end = *pos; while (end < sz && '\n' != buf[end]) end++; advanceeoln(p, buf, sz, pos, 1); free(p->subtitle); p->subtitle = malloc(end - start + 1); if (NULL == p->subtitle) texiabort(p, NULL); memcpy(p->subtitle, &buf[start], end - start); p->subtitle[end - start] = '\0'; } static void doaccent(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { if (*pos == sz) return; advance(p, buf, pos); switch (cmd) { case (TEXICMD_ACUTE): switch (buf[*pos]) { case ('a'): case ('A'): case ('e'): case ('E'): case ('i'): case ('I'): case ('o'): case ('O'): case ('u'): case ('U'): texiputchars(p, "\\(\'"); texiputchar(p, buf[*pos]); break; default: texiputchar(p, buf[*pos]); } break; case (TEXICMD_CIRCUMFLEX): switch (buf[*pos]) { case ('a'): case ('A'): case ('e'): case ('E'): case ('i'): case ('I'): case ('o'): case ('O'): case ('u'): case ('U'): texiputchars(p, "\\(^"); texiputchar(p, buf[*pos]); break; default: texiputchar(p, buf[*pos]); } break; case (TEXICMD_GRAVE): switch (buf[*pos]) { case ('a'): case ('A'): case ('e'): case ('E'): case ('i'): case ('I'): case ('o'): case ('O'): case ('u'): case ('U'): texiputchars(p, "\\(`"); texiputchar(p, buf[*pos]); break; default: texiputchar(p, buf[*pos]); } break; case (TEXICMD_TILDE): switch (buf[*pos]) { case ('a'): case ('A'): case ('n'): case ('N'): case ('o'): case ('O'): texiputchars(p, "\\(~"); texiputchar(p, buf[*pos]); break; default: texiputchar(p, buf[*pos]); } break; case (TEXICMD_UMLAUT): switch (buf[*pos]) { case ('a'): case ('A'): case ('e'): case ('E'): case ('i'): case ('I'): case ('o'): case ('O'): case ('u'): case ('U'): case ('y'): texiputchars(p, "\\(:"); texiputchar(p, buf[*pos]); break; default: texiputchar(p, buf[*pos]); } break; default: abort(); } } static void dosymbol(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { if (p->seenws && p->outcol && 0 == p->literal) { texiputchar(p, ' '); p->seenws = 0; } switch (cmd) { case (TEXICMD_ASTERISK): case (TEXICMD_NEWLINE): case (TEXICMD_SPACE): case (TEXICMD_TABSYM): texiputchar(p, ' '); break; case (TEXICMD_AT): texiputchar(p, '@'); break; case (TEXICMD_BANG): texiputchar(p, '!'); break; case (TEXICMD_BULLET): texiputchars(p, "\\(bu"); break; case (TEXICMD_COPYRIGHT): texiputchars(p, "\\(co"); break; case (TEXICMD_DOTS): texiputchars(p, "..."); break; case (TEXICMD_EQUIV): texiputchars(p, "\\(=="); break; case (TEXICMD_ERROR): texiputchars(p, "error\\(->"); break; case (TEXICMD_EXPANSION): texiputchars(p, "\\(->"); break; case (TEXICMD_LATEX): texiputchars(p, "LaTeX"); break; case (TEXICMD_MINUS): texiputchars(p, "\\-"); break; case (TEXICMD_PERIOD): texiputchar(p, '.'); break; case (TEXICMD_QUESTIONMARK): texiputchar(p, '?'); break; case (TEXICMD_RESULT): texiputchars(p, "\\(rA"); break; case (TEXICMD_SQUIGGLE_LEFT): texiputchars(p, "{"); break; case (TEXICMD_SQUIGGLE_RIGHT): texiputchars(p, "}"); break; case (TEXICMD_TEXSYM): texiputchars(p, "TeX"); break; case (TEXICMD_COLON): case (TEXICMD_HYPHEN): break; default: abort(); } if (texitoks[cmd].len > 1) doignbracket(p, cmd, buf, sz, pos); } static void doquotation(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { teximacro(p, "Qo"); parseto(p, buf, sz, pos, "quotation"); teximacro(p, "Qc"); } static void domath(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { size_t nest; /* * Math handling is different from everything else. * We don't allow any subcomponents, and we ignore the rules in * terms of @-commands. * This departs from GNU's rules, but whatever. */ while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); if (*pos == sz || '{' != buf[*pos]) return; advance(p, buf, pos); if (p->seenws && p->outcol && 0 == p->literal) texiputchar(p, ' '); p->seenws = 0; for (nest = 1; *pos < sz && nest > 0; ) { if ('{' == buf[*pos]) nest++; else if ('}' == buf[*pos]) if (0 == --nest) continue; texiputchar(p, buf[*pos]); advance(p, buf, pos); } if (*pos == sz) return; assert('}' == buf[*pos]); advance(p, buf, pos); } static void dovalue(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { size_t start, end, i; char *key, *val; const char *cp; if (TEXICMD_SET == cmd) { while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); for (start = end = *pos; end < sz; end++) if (ismspace(buf[end])) break; /* We don't allow empty keys. */ if (start == end) return; advanceto(p, buf, pos, end); key = malloc(end - start + 1); if (NULL == key) texiabort(p, NULL); memcpy(key, &buf[start], end - start); key[end - start] = '\0'; while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); for (start = end = *pos; end < sz; end++) if ('\n' == buf[end]) break; /* We do allow empty values. */ advanceeoln(p, buf, sz, pos, 1); val = malloc(end - start + 1); if (NULL == val) texiabort(p, NULL); memcpy(val, &buf[start], end - start); val[end - start] = '\0'; valueadd(p, key, val); } else if (TEXICMD_VALUE == cmd) { if (p->seenws) texiputchar(p, ' '); p->seenws = 0; if (NULL != (cp = valueblookup(p, buf, sz, pos))) { for (i = 0; i < p->valstackpos; i++) if (cp == p->valstack[i]) break; if (i < p->valstackpos) texierr(p, "recursive value"); if (64 == p->valstackpos) texierr(p, "too many nested values"); p->valstack[p->valstackpos++] = cp; parsemembuf(p, cp, strlen(cp)); p->valstackpos--; } else texiputchars(p, "{No value}"); } else if (TEXICMD_IFCLEAR == cmd) { if (NULL != valuellookup(p, buf, sz, pos)) doignblock(p, cmd, buf, sz, pos); else parseto(p, buf, sz, pos, texitoks[cmd].tok); } else if (TEXICMD_IFSET == cmd) { if (NULL == valuellookup(p, buf, sz, pos)) doignblock(p, cmd, buf, sz, pos); else parseto(p, buf, sz, pos, texitoks[cmd].tok); } else if (TEXICMD_CLEAR == cmd) valuelclear(p, buf, sz, pos); } static void dolink(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { int c; switch (cmd) { case (TEXICMD_EMAIL): teximacroopen(p, "Mt"); break; case (TEXICMD_UREF): case (TEXICMD_URL): teximacroopen(p, "Lk"); break; case (TEXICMD_XREF): texiputchars(p, "See Section"); teximacroopen(p, "Qq"); break; case (TEXICMD_PXREF): texiputchars(p, "see Section"); teximacroopen(p, "Qq"); break; default: abort(); } c = parsearg(p, buf, sz, pos, 0); p->ign++; while (c > 0) c = parsearg(p, buf, sz, pos, 1); p->ign--; texipunctuate(p, buf, sz, pos); teximacroclose(p); } static void doignargn(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { int c; c = parsearg(p, buf, sz, pos, 0); p->ign++; while (c > 0) c = parsearg(p, buf, sz, pos, 1); p->ign--; } /* * Sections can be made subsections and so on by way of the * @raiseections and @lowersections commands. * Perform this check here and return the actual section number adjusted * to the raise level. */ static int sectioner(struct texi *p, int sec) { if ((sec -= p->secoffs) < 0) { texiwarn(p, "section below minimum, clamping"); return(0); } else if (sec >= SECTSZ) { texiwarn(p, "section above maximum, clamping"); return(SECTSZ - 1); } return(sec); } static void dosubsubsection(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { int sec; sec = sectioner(p, 3); /* We don't have a subsubsubsection, so make one up. */ texivspace(p); teximacroopen(p, sects[sec]); parseeoln(p, buf, sz, pos); teximacroclose(p); texivspace(p); } static void dosubsection(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { int sec; sec = sectioner(p, 2); if (p->outmacro) texierr(p, "\"%s\" in open line scope!?", sects[sec]); else if (p->literal) texierr(p, "\"%s\" in a literal scope!?", sects[sec]); /* We don't have a subsubsection, so make one up. */ texivspace(p); teximacroopen(p, sects[sec]); parseeoln(p, buf, sz, pos); teximacroclose(p); texivspace(p); } static void dosecoffs(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { if (TEXICMD_RAISESECTIONS == cmd) p->secoffs++; else p->secoffs--; } static void dosection(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { int sec; switch (cmd) { case (TEXICMD_APPENDIX): case (TEXICMD_CHAPTER): case (TEXICMD_TOP): case (TEXICMD_UNNUMBERED): sec = sectioner(p, 0); break; case (TEXICMD_APPENDIXSEC): case (TEXICMD_HEADING): case (TEXICMD_SECTION): case (TEXICMD_UNNUMBEREDSEC): sec = sectioner(p, 1); break; default: abort(); } if (p->outmacro) texierr(p, "\"%s\" in open line scope!?", sects[sec]); else if (p->literal) texierr(p, "\"%s\" in a literal scope!?", sects[sec]); teximacroopen(p, sects[sec]); parseeoln(p, buf, sz, pos); teximacroclose(p); p->seenvs = 1; } static void dosp(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { texivspace(p); /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); } static void dotop(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { const char *cp; time_t t; char date[32]; if (--p->ign) texierr(p, "@top command while ignoring (%d)", p->ign); /* * Here we print our standard mdoc(7) prologue. * We use the title set with @settitle for the `Nd' description * and the source document filename (the first one as invoked on * the command line) for the title. * The date is set to the current date. */ t = time(NULL); strftime(date, sizeof(date), "%F", localtime(&t)); teximacroopen(p, "Dd"); texiputchars(p, date); teximacroclose(p); teximacroopen(p, "Dt"); for (cp = p->title; '\0' != *cp; cp++) texiputchar(p, toupper(*cp)); texiputchars(p, " 7"); teximacroclose(p); teximacro(p, "Os"); teximacro(p, "Sh NAME"); teximacroopen(p, "Nm"); texiputchars(p, p->title); teximacroclose(p); teximacroopen(p, "Nd"); texiputchars(p, NULL != p->subtitle ? p->subtitle : "Unknown description"); teximacroclose(p); p->seenvs = 1; dosection(p, cmd, buf, sz, pos); } static void doitem(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { /* Multitable is using raw tbl(7). */ if (TEXILIST_TABLE == p->list) { texiputchar(p, '\n'); return; } if (p->outmacro) texierr(p, "item in open line scope!?"); else if (p->literal) texierr(p, "item in a literal scope!?"); switch (p->list) { case (TEXILIST_ITEM): teximacroopen(p, "It"); break; case (TEXILIST_NOITEM): teximacro(p, "It"); break; default: texivspace(p); break; } /* Trick so we don't start with Pp. */ p->seenvs = 1; parseeoln(p, buf, sz, pos); if (TEXILIST_ITEM == p->list) teximacroclose(p); else if (p->outcol > 0) texiputchar(p, '\n'); } static void dotab(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { /* This command is only useful in @multitable. */ if (TEXILIST_TABLE == p->list) texiputchar(p, '\t'); } static void domultitable(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { enum texilist sv = p->list; int svliteral = p->literal; enum texicmd type; size_t i, end, columns; p->list = TEXILIST_TABLE; /* * TS/TE blocks aren't "in mdoc(7)", so we can disregard the * fact that we're in literal mode right now. */ p->literal = 0; teximacro(p, "TS"); columns = 0; /* Advance to the first argument... */ while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); /* Make sure we don't print anything when scanning. */ p->ign++; if ('@' == buf[*pos]) { /* * Look for @columnfractions. * We ignore these, but we do use the number of * arguments to set the number of columns that we'll * have. */ type = texicmd(p, buf, *pos, sz, &end, NULL); advanceto(p, buf, pos, end); if (TEXICMD_COLUMNFRACTIONS != type) texierr(p, "unknown multitable command"); while (*pos < sz && '\n' != buf[*pos]) { while (*pos < sz && isws(buf[*pos])) advance(p, buf, pos); while (*pos < sz && ! isws(buf[*pos])) { if ('\n' == buf[*pos]) break; advance(p, buf, pos); } columns++; } } else /* * We have arguments. * We could parse these, but it's easier to just let * tbl(7) figure it out. * So use this only to count arguments. */ while (parselinearg(p, buf, sz, pos) > 0) columns++; p->ign--; /* Left-justify each table entry. */ for (i = 0; i < columns; i++) { if (i > 0) texiputchar(p, ' '); texiputchar(p, 'l'); } texiputchars(p, ".\n"); p->outmacro++; parseto(p, buf, sz, pos, texitoks[cmd].tok); p->outmacro--; teximacro(p, "TE"); p->literal = svliteral; p->list = sv; } static void dotable(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { enum texilist sv = p->list; p->list = TEXILIST_ITEM; teximacro(p, "Bl -tag -width Ds"); /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); p->seenvs = 1; parseto(p, buf, sz, pos, texitoks[cmd].tok); teximacro(p, "El"); p->list = sv; } static void doenumerate(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { enum texilist sv = p->list; p->list = TEXILIST_NOITEM; teximacro(p, "Bl -enum"); p->seenvs = 1; /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); parseto(p, buf, sz, pos, "enumerate"); teximacro(p, "El"); p->list = sv; } static void doitemize(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { enum texilist sv = p->list; p->list = TEXILIST_NOITEM; teximacro(p, "Bl -bullet"); p->seenvs = 1; /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); parseto(p, buf, sz, pos, "itemize"); teximacro(p, "El"); p->list = sv; } static void doignbracket(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { p->ign++; parsebracket(p, buf, sz, pos); p->ign--; } static void doignline(struct texi *p, enum texicmd cmd, const char *buf, size_t sz, size_t *pos) { /* FIXME: ignore and parseeoln. */ advanceeoln(p, buf, sz, pos, 1); } /* * Parse colon-separated directories from "cp" (if not NULL) and returns * the array of pointers. * Prepends "base" to the array. * This does NOT sanitise the directories! */ static char ** parsedirs(struct texi *p, const char *base, const char *cp, size_t *sz) { char *tok, *str, *tofree; const char *cpp; size_t i; char **dirs; *sz = NULL != (cpp = cp) ? 2 : 1; if (*sz > 1) for ( ; NULL != (cpp = strchr(cpp, ':')); (*sz)++) cpp++; if (NULL == (dirs = calloc(*sz, sizeof(char *)))) texiabort(p, NULL); else if (NULL == (dirs[0] = strdup(base))) texiabort(p, NULL); if (NULL == cp) return(dirs); if (NULL == (tofree = tok = str = strdup(cp))) texiabort(p, NULL); for (i = 1; NULL != (tok = strsep(&str, ":")); i++) if (NULL == (dirs[i] = strdup(tok))) texiabort(p, NULL); free(tofree); return(dirs); } int main(int argc, char *argv[]) { struct texi texi; int c; char *path, *dir; const char *progname, *Idir, *cp; progname = strrchr(argv[0], '/'); if (progname == NULL) progname = argv[0]; else ++progname; memset(&texi, 0, sizeof(struct texi)); Idir = NULL; while (-1 != (c = getopt(argc, argv, "I:"))) switch (c) { case ('I'): Idir = optarg; break; default: goto usage; } argv += optind; if (0 == (argc -= optind)) goto usage; if (NULL == (path = strdup(argv[0]))) texiabort(&texi, NULL); else if (NULL == (dir = dirname(path))) texiabort(&texi, NULL); free(path); if (NULL != (cp = strrchr(argv[0], '/'))) texi.title = strdup(cp + 1); else texi.title = strdup(argv[0]); if (NULL == texi.title) texiabort(&texi, NULL); else if (NULL != (path = strchr(texi.title, '.'))) *path = '\0'; texi.ign = 1; texi.dirs = parsedirs(&texi, dir, Idir, &texi.dirsz); parsefile(&texi, argv[0], 1); /* We shouldn't get here. */ texiexit(&texi); return(EXIT_FAILURE); usage: fprintf(stderr, "usage: %s [-Idirs] file\n", progname); return(EXIT_FAILURE); }