532 lines
12 KiB
C
532 lines
12 KiB
C
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/*
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( cd xorriso ; cc -g -Wall -o make_xorriso_1 make_xorriso_1.c )
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*/
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/*
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Specialized converter from xorriso/xorriso.texi to xorriso/xorriso.1,
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or from xorriso/xorrisofs.texi to xorriso/xorrisofs.1,
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or from xorriso/xorrecord.texi to xorriso/xorrecord.1.
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The conversion rules are described at the beginning of xorriso/xorriso.texi
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Copyright 2010 - 2011 Thomas Schmitt, <scdbackup@gmx.net>
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Provided under GPL version 2 or later.
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*/
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#ifdef HAVE_CONFIG_H
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#include "../config.h"
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#endif
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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/* The conversion state
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*/
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struct Mx1 {
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char prog[4096];
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int count_in;
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int count_out;
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int skipping; /* <0 stacked skipping , 0= no , >0 counting down */
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};
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int Mx1_substitute(struct Mx1 *m, char line_in[256], char line_out[256],
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int raw, int upto, int flag);
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int Mx1_init(struct Mx1 *m, char *prog, int flag)
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{
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strncpy(m->prog, prog, sizeof(m->prog) - 1);
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m->prog[sizeof(m->prog) - 1]= 0;
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m->count_in= 0;
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m->count_out= 0;
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m->skipping= 0;
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return(1);
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}
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int Mx1_report_error(struct Mx1 *m, char *text, int flag)
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{
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fprintf(stderr, "%s : line %d : %s\n", m->prog, m->count_in, text);
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return(1);
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}
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int Mx1__get_word(char *line, char word[256], char **remainder, int flag)
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{
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char *cpt, *start;
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int l;
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word[0]= 0;
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*remainder= NULL;
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for(cpt= line; *cpt != 0 && isspace(*cpt); cpt++);
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if(*cpt == 0)
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return(0);
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start= cpt;
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for(cpt= line; *cpt != 0 && ! isspace(*cpt); cpt++);
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l= cpt - start;
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if(l > 0)
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strncpy(word, start, l);
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word[l]= 0;
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*remainder= cpt;
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return(1);
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}
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int Mx1_is_wrap(struct Mx1 *m, char wraps[][20], char *start, char **found,
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int flag)
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{
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int i;
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for(i= 0; wraps[i][0] != 0; i++)
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if(strncmp(start, wraps[i], strlen(wraps[i])) == 0)
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break;
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if(wraps[i][0] != 0) {
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if(found != NULL)
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*found= wraps[i];
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return(1);
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}
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return(0);
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}
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int Mx1_is_bold_wrap(struct Mx1 *m, char *start, char **found, int flag)
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{
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int ret;
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static char bold_wraps[][20]= {
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"@b{", "@dfn{", "@emph{", "@strong{", "@command{",
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"" };
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ret= Mx1_is_wrap(m, bold_wraps, start, found, 0);
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return(ret);
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}
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int Mx1_is_normal_wrap(struct Mx1 *m, char *start, char **found, int flag)
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{
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int ret;
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static char normal_wraps[][20]= {
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"@var{", "@code{", "@i{", "@abbr{", "@file{", "@option{", "@samp{", "@r{",
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"" };
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ret= Mx1_is_wrap(m, normal_wraps, start, found, 0);
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return(ret);
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}
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int Mx1_is_ignored_wrap(struct Mx1 *m, char *start, char **found, int flag)
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{
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int ret;
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static char ignored_wraps[][20]= {
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"@ref{", "@xref{",
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"" };
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ret= Mx1_is_wrap(m, ignored_wraps, start, found, 0);
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return(ret);
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}
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int Mx1_is_any_wrap(struct Mx1 *m, char *start, char **found, int flag)
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{
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int ret;
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ret= Mx1_is_bold_wrap(m, start, found, 0);
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if(ret > 0)
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return(1);
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ret= Mx1_is_normal_wrap(m, start, found, 0);
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if(ret > 0)
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return(2);
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ret= Mx1_is_ignored_wrap(m, start, found, 0);
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if(ret > 0)
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return(3);
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return(0);
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}
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/* @param flag bit0= recursion
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bit1= drop content of brackets
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*/
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int Mx1_rewrap(struct Mx1 *m, char **read_pt, char **write_pt,
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char *write_base, char *envelope,
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char *front, char *back, int flag)
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{
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char *rpt, *wpt, *ept, content[256], msg[256];
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int l, ret;
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rpt= *read_pt;
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wpt= *write_pt;
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ept= strchr(rpt, '}');
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if(ept == NULL) {
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sprintf(msg, "No closing bracket found for '%s'", envelope);
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Mx1_report_error(m, msg, 0);
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return(-1);
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}
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/* Mapped {...} content is subject to the rules except {...} mapping. */
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l= ept - rpt;
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if(flag & 2)
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l= 0;
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if(l > 0) {
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ret= Mx1_substitute(m, rpt, content, 0, l, 1);
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if(ret <= 0)
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return(ret);
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l= strlen(content);
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}
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if((wpt - write_base) + l + strlen(front) + strlen(back) > 255) {
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Mx1_report_error(m, "Line length overflow while text substitution", 0);
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return(-1);
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}
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strcpy(wpt, front);
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wpt+= strlen(front);
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if(l > 0)
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strncpy(wpt, content, l);
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wpt+= l;
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strcpy(wpt, back);
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wpt+= strlen(back);
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(*read_pt)+= ept - rpt;
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(*write_pt)= wpt;
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return(1);
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}
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/* @param flag bit0= recursion
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*/
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int Mx1_substitute(struct Mx1 *m, char line_in[256], char line_out[256],
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int raw, int upto, int flag)
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{
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char *rpt, *wpt, *found;
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int ret, typ= 0;
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wpt= line_out;
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for(rpt= line_in; rpt - line_in < upto && *rpt != 0; rpt++) {
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if(rpt - line_in < raw) {
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*(wpt++)= *rpt;
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continue;
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}
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if(*rpt == '@') {
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typ= 0;
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if(!(flag & 1))
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typ= Mx1_is_any_wrap(m, rpt, &found, 0);
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if(typ == 1) {
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/* @b{...}, @command{...}, @dfn{...}, @emph{...}, @strong{...}
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get mapped to \fB...\fR .
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*/
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rpt+= strlen(found);
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ret= Mx1_rewrap(m, &rpt, &wpt, line_out,
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found , "\\fB", "\\fR", flag & 1);
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if(ret <= 0)
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return(ret);
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} else if(typ == 2) {
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/* @abbr{...}, @code{...}, @file{...}, @i{...}, @option{...}, @r{...},
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@ref{...}, @samp{...},@var{...}, get mapped to ... .
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*/
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rpt+= strlen(found);
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ret= Mx1_rewrap(m, &rpt, &wpt, line_out, found, "", "", flag & 1);
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if(ret <= 0)
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return(ret);
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} else if(typ == 3) {
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/* @ref{...}, @xref{...} get mapped to empty text.
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*/
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rpt+= strlen(found);
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ret= Mx1_rewrap(m, &rpt, &wpt, line_out, found , "", "",
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(flag & 1) | 2);
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if(ret <= 0)
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return(ret);
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} else if(strncmp(rpt, "@email{", 7) == 0 && !(flag & 1)) {
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/* @email{...} gets mapped to <...> . */
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rpt+= 7;
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ret= Mx1_rewrap(m, &rpt, &wpt, line_out, "@email{", "<", ">", 0);
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if(ret <= 0)
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return(ret);
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} else if(strncmp(rpt, "@minus{}", 8) == 0) {
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/* @minus{} will become "-". */
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if((wpt - line_out) + 1 > 255)
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goto overflow;
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*(wpt++)= '-';
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rpt+= 7;
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} else if(strncmp(rpt, "@@", 2) == 0 ||
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strncmp(rpt, "@{", 2) == 0 ||
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strncmp(rpt, "@}", 2) == 0) {
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/* @@ , @{, @} will get stripped of their first @. */
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if((wpt - line_out) + 1 > 255)
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goto overflow;
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*(wpt++)= *(rpt + 1);
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rpt++;
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} else {
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if((wpt - line_out) + 1 > 255)
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goto overflow;
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*(wpt++)= *(rpt);
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}
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} else if(*rpt == '\\') {
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/* "\" becomes "\\" */
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if((wpt - line_out) + 2 > 255)
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goto overflow;
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*(wpt++)= '\\';
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*(wpt++)= '\\';
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} else if((wpt - line_out) + 1 > 255) {
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overflow:;
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Mx1_report_error(m, "Line length overflow while text substitution", 0);
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return(-1);
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} else
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*(wpt++)= *rpt;
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}
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*wpt= 0;
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return(1);
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}
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/*
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@return 1= line_out is valid, 0= do not put out line_out, -1 = error
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*/
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int Mx1_convert(struct Mx1 *m, char line_in[256], char line_out[256], int flag)
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{
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int l, num, keep= 0, ret, raw, i, backslash_count;
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char word[256], buf[256], *remainder, *wpt;
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m->count_in++;
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l= strlen(line_in);
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if(m->skipping > 0) {
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m->skipping--;
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return(0);
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}
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/* The first line gets discarded. */
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if(m->count_in == 1)
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return(0);
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/* Line start "@c man " will become "", the remainder is put out unaltered. */
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if(strncmp(line_in, "@c man ", 7) == 0) {
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strcpy(line_out, line_in + 7);
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m->count_out++;
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return(1);
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}
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/* Lines "@*" will be converted to ".br" */
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if(strcmp(line_in, "@*") == 0) {
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strcpy(line_out, ".br");
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m->count_out++;
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return(1);
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}
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/* @c man-ignore-lines N will discard N following lines.
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"@c man-ignore-lines begin" discards all following lines
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up to "@c man-ignore-lines end".
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*/
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if(strncmp(line_in, "@c man-ignore-lines ", 20) == 0) {
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if(strcmp(line_in + 20, "begin") == 0) {
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m->skipping--;
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return(0);
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} else if(strcmp(line_in + 20, "end") == 0) {
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if(m->skipping < 0)
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m->skipping++;
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return(0);
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} else if(m->skipping == 0) {
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num= 0;
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sscanf(line_in + 20, "%d", &num);
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if(num > 0) {
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m->skipping= num;
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return(0);
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}
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}
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Mx1_report_error(m, "Inappropriate use of '@c man-ignore-lines'", 0);
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return(-1);
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}
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/* Line blocks of "@menu" "@end menu" will be discarded. */
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if(strcmp(line_in, "@menu") == 0) {
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m->skipping--;
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return(0);
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}
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if(strcmp(line_in, "@end menu") == 0) {
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if(m->skipping < 0)
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m->skipping++;
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return(0);
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}
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|
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if(m->skipping)
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return(0);
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/* "@item -word words" becomes "\fB\-word\fR words". */
|
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/* "@item word words" becomes "\fBword\fR words". */
|
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if(strncmp(line_in, "@item ", 6) == 0) {
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ret= Mx1__get_word(line_in + 6, word, &remainder, 0);
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if(ret <= 0) {
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Mx1_report_error(m, "Found no word after @item", 0);
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|
return(0);
|
||
|
|
}
|
||
|
|
strcpy(buf, "\\fB");
|
||
|
|
if(word[0] == '-') {
|
||
|
|
if(l >= 255) {
|
||
|
|
length_overflow:;
|
||
|
|
Mx1_report_error(m, "Line length overflow while converting @item", 0);
|
||
|
|
return(-1);
|
||
|
|
}
|
||
|
|
strcat(buf, "\\");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Substitute option text */
|
||
|
|
raw= strlen(buf);
|
||
|
|
strcat(buf, word);
|
||
|
|
ret= Mx1_substitute(m, buf, line_out, raw, strlen(buf), 0);
|
||
|
|
if(ret <= 0)
|
||
|
|
return(-1);
|
||
|
|
|
||
|
|
if(strlen(line_out) + 3 + strlen(remainder) > 255)
|
||
|
|
goto length_overflow;
|
||
|
|
strcpy(buf, line_out);
|
||
|
|
strcat(buf, "\\fR");
|
||
|
|
raw= strlen(buf);
|
||
|
|
strcat(buf, remainder);
|
||
|
|
|
||
|
|
/* Substitute arguments text */
|
||
|
|
ret= Mx1_substitute(m, buf, line_out, raw, strlen(buf), 0);
|
||
|
|
if(ret <= 0)
|
||
|
|
return(-1);
|
||
|
|
m->count_out++;
|
||
|
|
return(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* @strong{... } gets mapped to \fB...\fR . */
|
||
|
|
/* @command{... } gets mapped to \fB...\fR . */
|
||
|
|
/* @minus{} will become "-". */
|
||
|
|
/* Mapped {...} content is subject to the rules except {...} mapping. */
|
||
|
|
/* @@ , @{, @} will get stripped of their first @. */
|
||
|
|
/* "\" becomes "\\" */
|
||
|
|
|
||
|
|
if(line_in[0] != '@' ||
|
||
|
|
Mx1_is_any_wrap(m, line_in, NULL, 0) > 0 ||
|
||
|
|
strncmp(line_in, "@minus{}", 8) == 0 ||
|
||
|
|
strncmp(line_in, "@@", 2) == 0 ||
|
||
|
|
strncmp(line_in, "@{", 2) == 0 ||
|
||
|
|
strncmp(line_in, "@}", 2) == 0 ) {
|
||
|
|
keep= 1;
|
||
|
|
ret= Mx1_substitute(m, line_in, line_out, 0, strlen(line_in), 0);
|
||
|
|
if(ret <= 0)
|
||
|
|
return(-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Other lines which begin by "@" will be discarded. */
|
||
|
|
if(! keep) {
|
||
|
|
if(line_in[0] == '@')
|
||
|
|
return(0);
|
||
|
|
strcpy(line_out, line_in);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* "-" which are not preceded by an uneven number of "\" will get
|
||
|
|
prepended one "\".
|
||
|
|
*/
|
||
|
|
l= strlen(line_out);
|
||
|
|
backslash_count= 0;
|
||
|
|
wpt= buf;
|
||
|
|
for(i= 0; i < l; i++) {
|
||
|
|
if(line_out[i] == '\\')
|
||
|
|
backslash_count++;
|
||
|
|
else if(line_out[i] == '-') {
|
||
|
|
if(backslash_count % 2 == 0)
|
||
|
|
*(wpt++)= '\\';
|
||
|
|
backslash_count= 0;
|
||
|
|
} else
|
||
|
|
backslash_count= 0;
|
||
|
|
*(wpt++)= line_out[i];
|
||
|
|
}
|
||
|
|
*wpt= 0;
|
||
|
|
strcpy(line_out, buf);
|
||
|
|
m->count_out++;
|
||
|
|
return(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
int ret, l, as_filter= 0, i;
|
||
|
|
char line_in[256], line_out[256], *got;
|
||
|
|
static char name_in[1024]= {"xorriso/xorriso.texi"};
|
||
|
|
static char name_out[1024]= {"xorriso/xorriso.1"};
|
||
|
|
struct Mx1 m;
|
||
|
|
FILE *fp_in= stdin, *fp_out= stdout;
|
||
|
|
|
||
|
|
Mx1_init(&m, argv[0], 0);
|
||
|
|
|
||
|
|
if(argc < 2) {
|
||
|
|
usage:;
|
||
|
|
fprintf(stderr, "usage: %s -auto|-filter [-xorrisofs]\n", argv[0]);
|
||
|
|
fprintf(stderr, " -auto xorriso/xorriso.texi -> xorriso/xorriso.1\n");
|
||
|
|
fprintf(stderr, " -filter stdin -> stdout\n");
|
||
|
|
fprintf(stderr, " -xorrisofs process xorriso/xorrisofs.texi\n");
|
||
|
|
fprintf(stderr, " -xorrecord process xorriso/xorrecord.texi\n");
|
||
|
|
exit(2);
|
||
|
|
}
|
||
|
|
for(i= 1; i < argc; i++) {
|
||
|
|
if(strcmp(argv[i], "-filter") == 0) {
|
||
|
|
as_filter= 1;
|
||
|
|
} else if(strcmp(argv[i], "-auto") == 0) {
|
||
|
|
as_filter= 0;
|
||
|
|
} else if(strcmp(argv[i], "-xorrisofs") == 0) {
|
||
|
|
strcpy(name_in, "xorriso/xorrisofs.texi");
|
||
|
|
strcpy(name_out, "xorriso/xorrisofs.1");
|
||
|
|
} else if(strcmp(argv[i], "-xorrecord") == 0) {
|
||
|
|
strcpy(name_in, "xorriso/xorrecord.texi");
|
||
|
|
strcpy(name_out, "xorriso/xorrecord.1");
|
||
|
|
} else {
|
||
|
|
fprintf(stderr, "%s : unknown option %s\n", argv[0], argv[i]);
|
||
|
|
goto usage;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if(!as_filter) {
|
||
|
|
fp_in= fopen(name_in, "r");
|
||
|
|
if(fp_in == NULL) {
|
||
|
|
fprintf(stderr, "%s : failed to fopen( %s ,r) : %d %s\n",
|
||
|
|
argv[0], name_in, errno, strerror(errno));
|
||
|
|
exit(3);
|
||
|
|
}
|
||
|
|
fp_out= fopen(name_out, "w");
|
||
|
|
if(fp_out == NULL) {
|
||
|
|
fprintf(stderr, "%s : failed to fopen( %s ,w) : %d %s\n",
|
||
|
|
argv[0], name_out, errno, strerror(errno));
|
||
|
|
exit(4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
while(1) {
|
||
|
|
got= fgets(line_in, sizeof(line_in), fp_in);
|
||
|
|
if(got == NULL)
|
||
|
|
break;
|
||
|
|
l= strlen(line_in);
|
||
|
|
while(l > 0) {
|
||
|
|
if(line_in[l - 1] == '\r' || line_in[l - 1] == '\n') {
|
||
|
|
line_in[l - 1] = 0;
|
||
|
|
l--;
|
||
|
|
} else
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
ret= Mx1_convert(&m, line_in, line_out, 0);
|
||
|
|
if(ret < 0)
|
||
|
|
exit(1);
|
||
|
|
if(ret == 0)
|
||
|
|
continue;
|
||
|
|
fprintf(fp_out, "%s\n", line_out);
|
||
|
|
}
|
||
|
|
exit(0);
|
||
|
|
}
|