version 1.6, 2019/04/06 22:37:57 |
version 1.12, 2019/04/14 12:59:15 |
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macro_open(struct format *f, const char *name) |
macro_open(struct format *f, const char *name) |
{ |
{ |
switch (f->linestate) { |
switch (f->linestate) { |
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case LINE_MACRO: |
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if (f->flags & FMT_NOSPC) { |
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fputs(" Ns ", stdout); |
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break; |
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} |
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if (f->flags & (FMT_CHILD | FMT_IMPL)) { |
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putchar(' '); |
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break; |
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} |
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/* FALLTHROUGH */ |
case LINE_TEXT: |
case LINE_TEXT: |
putchar('\n'); |
putchar('\n'); |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case LINE_NEW: |
case LINE_NEW: |
putchar('.'); |
putchar('.'); |
f->linestate = LINE_MACRO; |
f->linestate = LINE_MACRO; |
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f->flags = 0; |
break; |
break; |
case LINE_MACRO: |
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putchar(' '); |
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if (f->spc == 0) |
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fputs("Ns ", stdout); |
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break; |
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} |
} |
fputs(name, stdout); |
fputs(name, stdout); |
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f->flags &= FMT_IMPL; |
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f->flags |= FMT_ARG; |
} |
} |
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void |
void |
macro_close(struct format *f) |
macro_close(struct format *f) |
{ |
{ |
if (f->linestate == LINE_NEW) |
if (f->linestate != LINE_NEW) |
return; |
putchar('\n'); |
putchar('\n'); |
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f->linestate = LINE_NEW; |
f->linestate = LINE_NEW; |
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f->flags = 0; |
} |
} |
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void |
void |
macro_line(struct format *f, const char *name) |
macro_line(struct format *f, const char *name) |
{ |
{ |
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macro_close(f); |
macro_open(f, name); |
macro_open(f, name); |
macro_close(f); |
macro_close(f); |
} |
} |
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/* |
/* |
* At the end of a macro, decide whether the line needs to remain open |
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* because the next node follows without intervening whitespace; |
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* otherwise, close the line. |
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*/ |
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void |
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macro_closepunct(struct format *f, struct pnode *pn) |
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{ |
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char *cp; |
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if ((pn = TAILQ_NEXT(pn, child)) != NULL && pn->spc == 0) { |
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/* |
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* If a non-text node follows without intervening |
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* whitespace, the handler of that node will decide |
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* whether and how to suppress whitespace. To allow |
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* that, the macro line needs to remain open. |
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*/ |
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if (pn->node != NODE_TEXT && pn->node != NODE_ESCAPE) |
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return; |
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/* |
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* Give closing punctuation |
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* in the form of trailing macro arguments. |
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*/ |
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while (*pn->b != '\0' && |
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strchr("!),.:;?]", *pn->b) != NULL) { |
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putchar(' '); |
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putchar(*pn->b); |
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pn->b++; |
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pn->bsz--; |
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} |
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/* |
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* Text follows without intervening whitespace. |
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* Append the first word with .Ns. |
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*/ |
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if (*pn->b != '\0' && isspace((unsigned char)*pn->b) == 0) { |
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fputs(" Ns", stdout); |
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for (cp = pn->b; *cp != '\0'; cp++) |
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if (isspace((unsigned char)*cp)) |
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break; |
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*cp = '\0'; |
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macro_addarg(f, pn->b, ARG_SPACE); |
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pn->bsz -= cp - pn->b; |
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pn->b = cp; |
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if (pn->bsz > 0) { |
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pn->b++; |
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pn->bsz--; |
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pn->spc = 1; |
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} |
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} |
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/* Skip whitespace after the first word. */ |
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while (isspace((unsigned char)*pn->b)) { |
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pn->b++; |
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pn->bsz--; |
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pn->spc = 1; |
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} |
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} |
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macro_close(f); |
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} |
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/* |
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* Print an argument string on a macro line, collapsing whitespace. |
* Print an argument string on a macro line, collapsing whitespace. |
*/ |
*/ |
void |
void |
Line 170 macro_addarg(struct format *f, const char *arg, int fl |
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Line 112 macro_addarg(struct format *f, const char *arg, int fl |
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/* Escape us if we look like a macro. */ |
/* Escape us if we look like a macro. */ |
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if ((flags & ARG_QUOTED) == 0 && |
if ((flags & (ARG_QUOTED | ARG_UPPER)) == 0 && |
(cp == arg || isspace((unsigned char)cp[-1])) && |
(cp == arg || isspace((unsigned char)cp[-1])) && |
isupper((unsigned char)cp[0]) && |
isupper((unsigned char)cp[0]) && |
islower((unsigned char)cp[1]) && |
islower((unsigned char)cp[1]) && |
(cp[2] == '\0' || cp[2] == ' ' || |
(cp[2] == '\0' || cp[2] == ' ' || |
(islower((unsigned char)cp[2]) && |
((cp[3] == '\0' || cp[3] == ' ') && |
(cp[3] == '\0' || cp[3] == ' ')))) |
(strncmp(cp, "Brq", 3) == 0 || |
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strncmp(cp, "Bro", 3) == 0 || |
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strncmp(cp, "Brc", 3) == 0 || |
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strncmp(cp, "Bsx", 3) == 0)))) |
fputs("\\&", stdout); |
fputs("\\&", stdout); |
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if (*cp == '"') |
if (*cp == '"') |
Line 202 macro_argline(struct format *f, const char *name, cons |
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Line 147 macro_argline(struct format *f, const char *name, cons |
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* Recursively append text from the children of a node to a macro line. |
* Recursively append text from the children of a node to a macro line. |
*/ |
*/ |
void |
void |
macro_addnode(struct format *f, struct pnode *pn, int flags) |
macro_addnode(struct format *f, struct pnode *n, int flags) |
{ |
{ |
struct pnode *nc; |
struct pnode *nc; |
int quote_now; |
int quote_now; |
Line 214 macro_addnode(struct format *f, struct pnode *pn, int |
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Line 159 macro_addnode(struct format *f, struct pnode *pn, int |
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* that text, letting macro_addarg() decide about quoting. |
* that text, letting macro_addarg() decide about quoting. |
*/ |
*/ |
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while ((nc = TAILQ_FIRST(&pn->childq)) != NULL && |
while ((nc = TAILQ_FIRST(&n->childq)) != NULL && |
TAILQ_NEXT(nc, child) == NULL) |
TAILQ_NEXT(nc, child) == NULL) |
pn = nc; |
n = nc; |
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if (pn->node == NODE_TEXT || pn->node == NODE_ESCAPE) { |
if (n->node == NODE_TEXT || n->node == NODE_ESCAPE) { |
macro_addarg(f, pn->b, flags); |
macro_addarg(f, n->b, flags); |
return; |
return; |
} |
} |
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Line 257 macro_addnode(struct format *f, struct pnode *pn, int |
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Line 202 macro_addnode(struct format *f, struct pnode *pn, int |
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} |
} |
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void |
void |
macro_nodeline(struct format *f, const char *name, struct pnode *pn, int flags) |
macro_nodeline(struct format *f, const char *name, struct pnode *n, int flags) |
{ |
{ |
macro_open(f, name); |
macro_open(f, name); |
macro_addnode(f, pn, ARG_SPACE | flags); |
macro_addnode(f, n, ARG_SPACE | flags); |
macro_close(f); |
macro_close(f); |
} |
} |
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Line 270 macro_nodeline(struct format *f, const char *name, str |
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Line 215 macro_nodeline(struct format *f, const char *name, str |
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* line otherwise. The flag ARG_SPACE inserts spaces between words. |
* line otherwise. The flag ARG_SPACE inserts spaces between words. |
*/ |
*/ |
void |
void |
print_text(struct format *f, const char *word, int flags) { |
print_text(struct format *f, const char *word, int flags) |
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{ |
switch (f->linestate) { |
switch (f->linestate) { |
case LINE_NEW: |
case LINE_NEW: |
break; |
break; |
Line 282 print_text(struct format *f, const char *word, int fla |
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Line 228 print_text(struct format *f, const char *word, int fla |
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macro_close(f); |
macro_close(f); |
break; |
break; |
} |
} |
fputs(word, stdout); |
if (f->linestate == LINE_NEW && (*word == '.' || *word == '\'')) |
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fputs("\\&", stdout); |
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while (*word != '\0') { |
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putchar(*word); |
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if (*word++ == '\\') |
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putchar('e'); |
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} |
f->linestate = LINE_TEXT; |
f->linestate = LINE_TEXT; |
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f->flags = 0; |
} |
} |
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/* |
/* |