version 1.3, 2014/03/20 15:18:56 |
version 1.4, 2014/03/20 15:29:57 |
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const char *section; /* override "Dt" section */ |
const char *section; /* override "Dt" section */ |
}; |
}; |
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enum list { |
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LIST_BULLET = 0, |
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LIST_ENUM, |
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LIST_TAG, |
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LIST__MAX |
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}; |
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struct state { |
struct state { |
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? */ |
int haspar; /* in paragraph: do we need Pp? */ |
int isname; /* are we the NAME section? */ |
int isname; /* are we the NAME section? */ |
const char *fname; /* file being parsed */ |
const char *fname; /* file being parsed */ |
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#define LIST_STACKSZ 128 |
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enum list lstack[LIST_STACKSZ]; /* open lists */ |
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size_t lpos; /* where in list stack */ |
}; |
}; |
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enum fmt { |
enum fmt { |
Line 264 formatcode(const char *buf, size_t *start, |
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Line 274 formatcode(const char *buf, size_t *start, |
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continue; |
continue; |
} |
} |
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/* |
/* |
* Make sure that any macro-like words (or |
* Make sure that any macro-like words (or |
* really any word starting with a capital |
* really any word starting with a capital |
* letter) is assumed to be a macro that must be |
* letter) is assumed to be a macro that must be |
* escaped. |
* escaped. |
* XXX: should this be isalpha()? |
* This matches "Xx " and "XxEOLN". |
*/ |
*/ |
if ((' ' == last || '\n' == last) && |
if ((' ' == last || '\n' == last) && |
isupper(buf[*start])) |
end - *start > 1 && |
printf("\\&"); |
isupper((int)buf[*start]) && |
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islower((int)buf[*start + 1]) && |
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(end - *start == 2 || |
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' ' == buf[*start + 2])) |
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printf("\\&"); |
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last = buf[*start]; |
/* Suppress newline. */ |
if ('\n' == last) |
if ('\n' == (last = buf[(*start)++])) |
last = ' '; |
last = ' '; |
putchar(last); |
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(*start)++; |
putchar(last); |
} |
} |
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if ( ! nomacro && FMT_CODE == fmt) |
if ( ! nomacro && FMT_CODE == fmt) |
Line 322 formatcodeln(const char *buf, size_t *start, size_t en |
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Line 335 formatcodeln(const char *buf, size_t *start, size_t en |
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{ |
{ |
int last; |
int last; |
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last = '\n'; |
last = ' '; |
while (*start < end) { |
while (*start < end) { |
if (*start + 1 < end && '<' == buf[*start + 1]) { |
if (*start + 1 < end && '<' == buf[*start + 1]) { |
formatcode(buf, start, end, 1, last, nomacro); |
formatcode(buf, start, end, 1, last, nomacro); |
continue; |
continue; |
} |
} |
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/* |
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* Since we're already on a macro line, we want to make |
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* sure that we don't inadvertently invoke a macro. |
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* We need to do this carefully because section names |
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* are used in troff and we don't want to escape |
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* something that needn't be escaped. |
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*/ |
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if (' ' == last && end - *start > 1 && |
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isupper((int)buf[*start]) && |
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islower((int)buf[*start + 1]) && |
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(end - *start == 2 || |
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' ' == buf[*start + 2])) |
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printf("\\&"); |
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if ('\n' != buf[*start]) |
if ('\n' != buf[*start]) |
putchar(last = buf[*start]); |
putchar(last = buf[*start]); |
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else |
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putchar(last = ' '); |
(*start)++; |
(*start)++; |
} |
} |
} |
} |
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/* |
/* |
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* Guess at what kind of list we are. |
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* These are taken straight from the POD manual. |
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* I don't know what people do in real life. |
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*/ |
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static enum list |
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listguess(const char *buf, size_t start, size_t end) |
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{ |
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size_t len = end - start; |
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assert(end >= start); |
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if (len == 1 && '*' == buf[start]) |
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return(LIST_BULLET); |
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if (len == 2 && '1' == buf[start] && '.' == buf[start + 1]) |
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return(LIST_ENUM); |
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else if (len == 1 && '1' == buf[start]) |
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return(LIST_ENUM); |
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else |
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return(LIST_TAG); |
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} |
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/* |
* A command paragraph, as noted in the perlpod manual, just indicates |
* A command paragraph, as noted in the perlpod manual, just indicates |
* that we should do something, optionally with some text to print as |
* that we should do something, optionally with some text to print as |
* well. |
* well. |
Line 411 command(struct state *st, const char *buf, size_t star |
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Line 462 command(struct state *st, const char *buf, size_t star |
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st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
case (CMD_OVER): |
case (CMD_OVER): |
/* |
/* |
* TODO: we should be doing this after we process the |
* If we have an existing list that hasn't had an =item |
* first =item to see whether we'll do an -enum, |
* yet, then make sure that we open it now. |
* -bullet, or something else. |
* We use the default list type, but that can't be |
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* helped (we haven't seen any items yet). |
*/ |
*/ |
puts(".Bl -tag -width Ds"); |
if (st->lpos > 0) |
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if (LIST__MAX == st->lstack[st->lpos - 1]) { |
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st->lstack[st->lpos - 1] = LIST_TAG; |
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puts(".Bl -tag -width Ds"); |
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} |
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st->lpos++; |
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assert(st->lpos < LIST_STACKSZ); |
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st->lstack[st->lpos - 1] = LIST__MAX; |
break; |
break; |
case (CMD_ITEM): |
case (CMD_ITEM): |
printf(".It "); |
assert(st->lpos > 0); |
formatcodeln(buf, &start, end, 0); |
/* |
putchar('\n'); |
* If we're the first =item, guess at what our content |
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* will be: "*" is a bullet list, "1." is a numbered |
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* list, and everything is tagged. |
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*/ |
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if (LIST__MAX == st->lstack[st->lpos - 1]) { |
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st->lstack[st->lpos - 1] = |
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listguess(buf, start, end); |
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switch (st->lstack[st->lpos - 1]) { |
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case (LIST_BULLET): |
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puts(".Bl -bullet"); |
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break; |
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case (LIST_ENUM): |
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puts(".Bl -enum"); |
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break; |
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default: |
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puts(".Bl -tag -width Ds"); |
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break; |
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} |
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} |
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switch (st->lstack[st->lpos - 1]) { |
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case (LIST_TAG): |
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printf(".It "); |
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formatcodeln(buf, &start, end, 0); |
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putchar('\n'); |
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break; |
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case (LIST_ENUM): |
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/* FALLTHROUGH */ |
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case (LIST_BULLET): |
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/* |
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* Abandon the remainder of the paragraph |
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* because we're going to be a bulletted or |
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* numbered list. |
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*/ |
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puts(".It"); |
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break; |
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default: |
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abort(); |
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} |
st->haspar = 1; |
st->haspar = 1; |
break; |
break; |
case (CMD_BACK): |
case (CMD_BACK): |
puts(".El"); |
/* Make sure we don't back over the stack. */ |
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if (st->lpos > 0) { |
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st->lpos--; |
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puts(".El"); |
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} |
break; |
break; |
case (CMD_BEGIN): |
case (CMD_BEGIN): |
/* |
/* |
Line 501 ordinary(struct state *st, const char *buf, size_t sta |
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Line 601 ordinary(struct state *st, const char *buf, size_t sta |
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for ( ; i > start; i--) |
for ( ; i > start; i--) |
if ('-' != buf[i]) |
if ('-' != buf[i]) |
break; |
break; |
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/* FIXME: escape macro-like words etc. */ |
printf(".Nm %.*s\n", |
printf(".Nm %.*s\n", |
(int)((i + 1) - start), &buf[start]); |
(int)((i + 1) - start), &buf[start]); |
printf(".Nd %.*s\n", |
printf(".Nd %.*s\n", |