version 1.30, 2014/07/15 19:00:48 |
version 1.31, 2014/07/15 19:03:07 |
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struct state { |
struct state { |
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const char *fname; /* file being parsed */ |
int parsing; /* after =cut of before command */ |
int parsing; /* after =cut of before command */ |
int paused; /* in =begin and before =end */ |
int paused; /* in =begin and before =end */ |
int haspar; /* in paragraph: do we need Pp? */ |
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enum sect sect; /* which section are we in? */ |
enum sect sect; /* which section are we in? */ |
const char *fname; /* file being parsed */ |
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#define LIST_STACKSZ 128 |
#define LIST_STACKSZ 128 |
enum list lstack[LIST_STACKSZ]; /* open lists */ |
enum list lstack[LIST_STACKSZ]; /* open lists */ |
size_t lpos; /* where in list stack */ |
size_t lpos; /* where in list stack */ |
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int haspar; /* in paragraph: do we need Pp? */ |
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int hasnl; /* in text: just started a new line */ |
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char *outbuf; /* text buffered for output */ |
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size_t outbufsz; /* allocated size of outbuf */ |
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size_t outbuflen; /* current length of outbuf */ |
}; |
}; |
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enum fmt { |
enum fmt { |
Line 123 static const char fmts[FMT__MAX] = { |
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Line 127 static const char fmts[FMT__MAX] = { |
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static int last; |
static int last; |
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static void |
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outbuf_grow(struct state *st, size_t by) |
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{ |
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st->outbufsz += (by / 128 + 1) * 128; |
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st->outbuf = realloc(st->outbuf, st->outbufsz); |
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if (NULL == st->outbuf) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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} |
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static void |
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outbuf_addchar(struct state *st) |
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{ |
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if (st->outbuflen + 2 >= st->outbufsz) |
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outbuf_grow(st, 1); |
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st->outbuf[st->outbuflen++] = last; |
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if ('\\' == last) |
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st->outbuf[st->outbuflen++] = 'e'; |
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st->outbuf[st->outbuflen] = '\0'; |
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} |
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static void |
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outbuf_addstr(struct state *st, const char *str) |
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{ |
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size_t slen; |
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slen = strlen(str); |
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if (st->outbuflen + slen >= st->outbufsz) |
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outbuf_grow(st, slen); |
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memcpy(st->outbuf + st->outbuflen, str, slen+1); |
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last = str[slen - 1]; |
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} |
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static void |
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outbuf_flush(struct state *st) |
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{ |
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if (0 == st->outbuflen) |
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return; |
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fputs(st->outbuf, stdout); |
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*st->outbuf = '\0'; |
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st->outbuflen = 0; |
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st->hasnl = 0; |
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} |
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static void |
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outbuf_newln(struct state *st) |
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{ |
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if ('\n' == last) |
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return; |
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outbuf_flush(st); |
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putchar('\n'); |
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last = '\n'; |
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st->hasnl = 1; |
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} |
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/* |
/* |
* Given buf[*start] is at the start of an escape name, read til the end |
* Given buf[*start] is at the start of an escape name, read til the end |
* of the escape ('>') then try to do something with it. |
* of the escape ('>') then try to do something with it. |
* Sets start to be one after the '>'. |
* Sets start to be one after the '>'. |
*/ |
*/ |
static void |
static void |
formatescape(const char *buf, size_t *start, size_t end) |
formatescape(struct state *st, const char *buf, size_t *start, size_t end) |
{ |
{ |
char esc[16]; /* no more needed */ |
char esc[16]; /* no more needed */ |
size_t i, max; |
size_t i, max; |
Line 157 formatescape(const char *buf, size_t *start, size_t en |
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Line 223 formatescape(const char *buf, size_t *start, size_t en |
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* Just let the rest of them go. |
* Just let the rest of them go. |
*/ |
*/ |
if (0 == strcmp(esc, "lt")) |
if (0 == strcmp(esc, "lt")) |
printf("\\(la"); |
outbuf_addstr(st, "\\(la"); |
else if (0 == strcmp(esc, "gt")) |
else if (0 == strcmp(esc, "gt")) |
printf("\\(ra"); |
outbuf_addstr(st, "\\(ra"); |
else if (0 == strcmp(esc, "vb")) |
else if (0 == strcmp(esc, "vb")) |
printf("\\(ba"); |
outbuf_addstr(st, "\\(ba"); |
else if (0 == strcmp(esc, "sol")) |
else if (0 == strcmp(esc, "sol")) |
printf("\\(sl"); |
outbuf_addstr(st, "\\(sl"); |
else |
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return; |
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last = 'a'; |
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} |
} |
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/* |
/* |
Line 391 formatcode(struct state *st, const char *buf, size_t * |
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Line 453 formatcode(struct state *st, const char *buf, size_t * |
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{ |
{ |
enum fmt fmt; |
enum fmt fmt; |
size_t i, j, dsz; |
size_t i, j, dsz; |
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int white; |
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assert(*start + 1 < end); |
assert(*start + 1 < end); |
assert('<' == buf[*start + 1]); |
assert('<' == buf[*start + 1]); |
Line 427 formatcode(struct state *st, const char *buf, size_t * |
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Line 490 formatcode(struct state *st, const char *buf, size_t * |
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* processing for real macros. |
* processing for real macros. |
*/ |
*/ |
if (FMT_ESCAPE == fmt) { |
if (FMT_ESCAPE == fmt) { |
formatescape(buf, start, end); |
formatescape(st, buf, start, end); |
return(0); |
return(0); |
} else if (FMT_NULL == fmt || FMT_INDEX == fmt) { |
} else if (FMT_NULL == fmt || FMT_INDEX == fmt) { |
/* |
/* |
Line 466 formatcode(struct state *st, const char *buf, size_t * |
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Line 529 formatcode(struct state *st, const char *buf, size_t * |
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* suppressed in, e.g., "Nm" and "Sh" macros). |
* suppressed in, e.g., "Nm" and "Sh" macros). |
*/ |
*/ |
if (FMT__MAX != fmt && !nomacro) { |
if (FMT__MAX != fmt && !nomacro) { |
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white = ' ' == last || '\n' == last || |
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' ' == buf[*start]; |
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/* |
/* |
* Print out the macro describing this format code. |
* If we are on a text line and there is no |
* If we're not "reentrant" (not yet on a macro line) |
* whitespace before our content, we have to make |
* then print a newline, if necessary, and the macro |
* the previous word a prefix to the macro line. |
* indicator. |
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* Otherwise, offset us with a space. |
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*/ |
*/ |
if ( ! reentrant) { |
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if ( ! white && ! reentrant) { |
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if ( ! st->hasnl) |
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putchar('\n'); |
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printf(".Pf "); |
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} |
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outbuf_flush(st); |
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/* Whitespace is easier to suppress on macro lines. */ |
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if ( ! white && reentrant) |
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printf(" Ns"); |
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/* Unless we are on a macro line, start one. */ |
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if (white && ! reentrant) { |
if (last != '\n') |
if (last != '\n') |
putchar('\n'); |
putchar('\n'); |
putchar('.'); |
putchar('.'); |
} else |
} else |
putchar(' '); |
putchar(' '); |
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/* |
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* If we don't have whitespace before us (and none after |
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* the opening delimiter), then suppress macro |
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* whitespace with Pf. |
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*/ |
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if (' ' != last && '\n' != last && ' ' != buf[*start]) |
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printf("Pf "); |
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/* Print the macro corresponding to this format code. */ |
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switch (fmt) { |
switch (fmt) { |
case (FMT_ITALIC): |
case (FMT_ITALIC): |
printf("Em "); |
printf("Em "); |
Line 526 formatcode(struct state *st, const char *buf, size_t * |
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Line 600 formatcode(struct state *st, const char *buf, size_t * |
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default: |
default: |
abort(); |
abort(); |
} |
} |
} |
} else |
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outbuf_flush(st); |
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/* |
/* |
* Process until we reach the end marker (e.g., '>') or until we |
* Process until we reach the end marker (e.g., '>') or until we |
Line 730 command(struct state *st, const char *buf, size_t star |
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Line 805 command(struct state *st, const char *buf, size_t star |
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st->sect = SECT_SYNOPSIS; |
st->sect = SECT_SYNOPSIS; |
} |
} |
formatcodeln(st, buf, &start, end, 1); |
formatcodeln(st, buf, &start, end, 1); |
putchar('\n'); |
putchar(last = '\n'); |
st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
case (CMD_HEAD2): |
case (CMD_HEAD2): |
printf(".Ss "); |
printf(".Ss "); |
formatcodeln(st, buf, &start, end, 1); |
formatcodeln(st, buf, &start, end, 1); |
putchar('\n'); |
putchar(last = '\n'); |
st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
case (CMD_HEAD3): |
case (CMD_HEAD3): |
puts(".Pp"); |
puts(".Pp"); |
printf(".Em "); |
printf(".Em "); |
formatcodeln(st, buf, &start, end, 0); |
formatcodeln(st, buf, &start, end, 0); |
putchar('\n'); |
putchar(last = '\n'); |
puts(".Pp"); |
puts(".Pp"); |
st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
Line 751 command(struct state *st, const char *buf, size_t star |
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Line 826 command(struct state *st, const char *buf, size_t star |
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puts(".Pp"); |
puts(".Pp"); |
printf(".No "); |
printf(".No "); |
formatcodeln(st, buf, &start, end, 0); |
formatcodeln(st, buf, &start, end, 0); |
putchar('\n'); |
putchar(last = '\n'); |
puts(".Pp"); |
puts(".Pp"); |
st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
Line 805 command(struct state *st, const char *buf, size_t star |
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Line 880 command(struct state *st, const char *buf, size_t star |
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case (LIST_TAG): |
case (LIST_TAG): |
printf(".It "); |
printf(".It "); |
formatcodeln(st, buf, &start, end, 0); |
formatcodeln(st, buf, &start, end, 0); |
putchar('\n'); |
putchar(last = '\n'); |
break; |
break; |
case (LIST_ENUM): |
case (LIST_ENUM): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
Line 861 command(struct state *st, const char *buf, size_t star |
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Line 936 command(struct state *st, const char *buf, size_t star |
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static void |
static void |
verbatim(struct state *st, const char *buf, size_t start, size_t end) |
verbatim(struct state *st, const char *buf, size_t start, size_t end) |
{ |
{ |
int last; |
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size_t i; |
size_t i; |
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if ( ! st->parsing || st->paused) |
if ( ! st->parsing || st->paused) |
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if ('\\' == buf[start]) |
if ('\\' == buf[start]) |
printf("e"); |
printf("e"); |
} |
} |
putchar('\n'); |
putchar(last = '\n'); |
puts(".Ed"); |
puts(".Ed"); |
} |
} |
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Line 946 hasmatch(const char *buf, size_t start, size_t end) |
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Line 1020 hasmatch(const char *buf, size_t start, size_t end) |
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* If we're an ending bracket, see if we have a stack already. |
* If we're an ending bracket, see if we have a stack already. |
*/ |
*/ |
static int |
static int |
dosynopsisop(const char *buf, int *last, |
dosynopsisop(const char *buf, size_t *start, size_t end, size_t *opstack) |
size_t *start, size_t end, size_t *opstack) |
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{ |
{ |
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assert('[' == buf[*start] || ']' == buf[*start]); |
assert('[' == buf[*start] || ']' == buf[*start]); |
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if ('[' == buf[*start] && hasmatch(buf, *start + 1, end)) { |
if ('[' == buf[*start] && hasmatch(buf, *start + 1, end)) { |
if ('\n' != *last) |
if ('\n' != last) |
putchar('\n'); |
putchar('\n'); |
puts(".Oo"); |
puts(".Oo"); |
(*opstack)++; |
(*opstack)++; |
Line 961 dosynopsisop(const char *buf, int *last, |
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Line 1034 dosynopsisop(const char *buf, int *last, |
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return(0); |
return(0); |
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if (']' == buf[*start] && *opstack > 0) { |
if (']' == buf[*start] && *opstack > 0) { |
if ('\n' != *last) |
if ('\n' != last) |
putchar('\n'); |
putchar('\n'); |
puts(".Oc"); |
puts(".Oc"); |
(*opstack)--; |
(*opstack)--; |
Line 969 dosynopsisop(const char *buf, int *last, |
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Line 1042 dosynopsisop(const char *buf, int *last, |
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return(0); |
return(0); |
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(*start)++; |
(*start)++; |
*last = '\n'; |
last = '\n'; |
while (' ' == buf[*start]) |
while (' ' == buf[*start]) |
(*start)++; |
(*start)++; |
return(1); |
return(1); |
Line 998 donamenm(struct state *st, const char *buf, size_t *st |
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Line 1071 donamenm(struct state *st, const char *buf, size_t *st |
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break; |
break; |
formatcodeln(st, buf, start, word, 1); |
formatcodeln(st, buf, start, word, 1); |
if (*start == end) { |
if (*start == end) { |
putchar('\n'); |
putchar(last = '\n'); |
continue; |
continue; |
} |
} |
assert(',' == buf[*start]); |
assert(',' == buf[*start]); |
Line 1048 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1121 ordinary(struct state *st, const char *buf, size_t sta |
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start++; |
start++; |
fputs(".Nd ", stdout); |
fputs(".Nd ", stdout); |
formatcodeln(st, buf, &start, end, 1); |
formatcodeln(st, buf, &start, end, 1); |
putchar('\n'); |
putchar(last = '\n'); |
return; |
return; |
} |
} |
} |
} |
Line 1057 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1130 ordinary(struct state *st, const char *buf, size_t sta |
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puts(".Pp"); |
puts(".Pp"); |
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st->haspar = 0; |
st->haspar = 0; |
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st->hasnl = 1; |
last = '\n'; |
last = '\n'; |
opstack = 0; |
opstack = 0; |
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Line 1071 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1145 ordinary(struct state *st, const char *buf, size_t sta |
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else if ('\n' == buf[start]) |
else if ('\n' == buf[start]) |
break; |
break; |
else if ('\n' == last && '.' == buf[start]) |
else if ('\n' == last && '.' == buf[start]) |
printf("\\&"); |
outbuf_addstr(st, "\\&"); |
else if ('\n' == last && '\'' == buf[start]) |
else if ('\n' == last && '\'' == buf[start]) |
printf("\\&"); |
outbuf_addstr(st, "\\&"); |
/* |
/* |
* If we're in the SYNOPSIS, have square |
* If we're in the SYNOPSIS, have square |
* brackets indicate that we're opening and |
* brackets indicate that we're opening and |
Line 1082 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1156 ordinary(struct state *st, const char *buf, size_t sta |
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if (SECT_SYNOPSIS == st->sect && |
if (SECT_SYNOPSIS == st->sect && |
('[' == buf[start] || |
('[' == buf[start] || |
']' == buf[start]) && |
']' == buf[start]) && |
dosynopsisop(buf, &last, |
dosynopsisop(buf, &start, end, &opstack)) |
&start, end, &opstack)) |
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continue; |
continue; |
putchar(last = buf[start++]); |
last = buf[start++]; |
if ('\\' == last) |
if (' ' == last) { |
putchar('e'); |
outbuf_flush(st); |
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putchar(' '); |
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} else |
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outbuf_addchar(st); |
} |
} |
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if (start < end - 1 && '<' == buf[start + 1]) { |
if (start < end - 1 && '<' == buf[start + 1]) { |
Line 1108 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1184 ordinary(struct state *st, const char *buf, size_t sta |
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} |
} |
/* End the macro line. */ |
/* End the macro line. */ |
putchar(last = '\n'); |
putchar(last = '\n'); |
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st->hasnl = 1; |
/* |
/* |
* Consume all whitespace |
* Consume all whitespace |
* so we don't accidentally start |
* so we don't accidentally start |
Line 1117 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1194 ordinary(struct state *st, const char *buf, size_t sta |
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start++; |
start++; |
} |
} |
} else if (start < end && '\n' == buf[start]) { |
} else if (start < end && '\n' == buf[start]) { |
/* |
outbuf_newln(st); |
* Print the newline only if we haven't already |
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* printed a newline. |
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*/ |
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if (last != '\n') |
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putchar(last = buf[start]); |
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if (++start >= end) |
if (++start >= end) |
continue; |
continue; |
/* |
/* |
Line 1133 ordinary(struct state *st, const char *buf, size_t sta |
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Line 1205 ordinary(struct state *st, const char *buf, size_t sta |
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* have a macro subsequent it, which may be |
* have a macro subsequent it, which may be |
* possible if we have an escape next. |
* possible if we have an escape next. |
*/ |
*/ |
if (' ' == buf[start] || '\t' == buf[start]) { |
if (' ' == buf[start] || '\t' == buf[start]) |
puts(".br"); |
puts(".br"); |
last = '\n'; |
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} |
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for ( ; start < end; start++) |
for ( ; start < end; start++) |
if (' ' != buf[start] && '\t' != buf[start]) |
if (' ' != buf[start] && '\t' != buf[start]) |
break; |
break; |
} |
} |
} |
} |
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outbuf_newln(st); |
if (last != '\n') |
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putchar('\n'); |
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} |
} |
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/* |
/* |