version 1.2, 2019/03/28 20:41:33 |
version 1.20, 2019/05/02 12:40:42 |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
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#include <string.h> |
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#include "node.h" |
#include "node.h" |
#include "macro.h" |
#include "macro.h" |
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*/ |
*/ |
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void |
void |
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para_check(struct format *f) |
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{ |
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if (f->parastate != PARA_WANT) |
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return; |
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if (f->linestate != LINE_NEW) { |
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putchar('\n'); |
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f->linestate = LINE_NEW; |
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} |
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puts(".Pp"); |
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f->parastate = PARA_HAVE; |
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} |
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void |
macro_open(struct format *f, const char *name) |
macro_open(struct format *f, const char *name) |
{ |
{ |
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para_check(f); |
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->nofill || 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: |
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if (f->nofill && f->linestate == LINE_TEXT) |
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fputs(" \\c", stdout); |
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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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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f->parastate = PARA_MID; |
} |
} |
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void |
void |
macro_close(struct format *f) |
macro_close(struct format *f) |
{ |
{ |
assert(f->linestate == LINE_MACRO); |
if (f->linestate != LINE_NEW) |
putchar('\n'); |
putchar('\n'); |
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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/* |
/* |
* If the next node is a text node starting with closing punctuation, |
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* emit the closing punctuation as a trailing macro argument. |
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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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if ((pn = TAILQ_NEXT(pn, child)) != NULL && |
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pn->node == NODE_TEXT && pn->bsz > 0 && |
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(pn->b[0] == ',' || pn->b[0] == '.') && |
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(pn->bsz == 1 || isspace((unsigned char)pn->b[1]))) { |
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putchar(' '); |
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putchar(pn->b[0]); |
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pn->b++; |
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pn->bsz--; |
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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 |
macro_addarg(struct format *f, const char *arg, int flags) |
macro_addarg(struct format *f, const char *arg, int flags) |
{ |
{ |
const char *cp; |
const char *cp; |
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int quote_now; |
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assert(f->linestate == LINE_MACRO); |
assert(f->linestate == LINE_MACRO); |
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/* Quote if requested and necessary. */ |
/* Quote if requested and necessary. */ |
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quote_now = 0; |
if ((flags & (ARG_SINGLE | ARG_QUOTED)) == ARG_SINGLE) { |
if ((flags & (ARG_SINGLE | ARG_QUOTED)) == ARG_SINGLE) { |
for (cp = arg; *cp != '\0'; cp++) |
for (cp = arg; *cp != '\0'; cp++) |
if (isspace((unsigned char)*cp)) |
if (isspace((unsigned char)*cp)) |
Line 101 macro_addarg(struct format *f, const char *arg, int fl |
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Line 114 macro_addarg(struct format *f, const char *arg, int fl |
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} |
} |
putchar('"'); |
putchar('"'); |
flags = ARG_QUOTED; |
flags = ARG_QUOTED; |
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quote_now = 1; |
} |
} |
} |
} |
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Line 118 macro_addarg(struct format *f, const char *arg, int fl |
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Line 132 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 136 macro_addarg(struct format *f, const char *arg, int fl |
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Line 153 macro_addarg(struct format *f, const char *arg, int fl |
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if (*cp == '\\') |
if (*cp == '\\') |
putchar('e'); |
putchar('e'); |
} |
} |
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if (quote_now) |
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putchar('"'); |
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f->parastate = PARA_MID; |
} |
} |
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void |
void |
Line 150 macro_argline(struct format *f, const char *name, cons |
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Line 170 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) |
{ |
{ |
int quote_now; |
struct pnode *nc; |
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int is_text, quote_now; |
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assert(f->linestate == LINE_MACRO); |
assert(f->linestate == LINE_MACRO); |
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Line 161 macro_addnode(struct format *f, struct pnode *pn, int |
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Line 182 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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if (pn->node == NODE_TEXT || |
while ((nc = TAILQ_FIRST(&n->childq)) != NULL && |
((pn = TAILQ_FIRST(&pn->childq)) != NULL && |
TAILQ_NEXT(nc, child) == NULL) |
pn->node == NODE_TEXT && TAILQ_NEXT(pn, child) == NULL)) { |
n = nc; |
macro_addarg(f, pn->b, flags); |
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if (n->node == NODE_TEXT || n->node == NODE_ESCAPE) { |
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macro_addarg(f, n->b, flags); |
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f->parastate = PARA_MID; |
return; |
return; |
} |
} |
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Line 192 macro_addnode(struct format *f, struct pnode *pn, int |
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Line 216 macro_addnode(struct format *f, struct pnode *pn, int |
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* inserting whitespace between nodes. |
* inserting whitespace between nodes. |
*/ |
*/ |
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while (pn != NULL) { |
while (nc != NULL) { |
macro_addnode(f, pn, flags); |
macro_addnode(f, nc, flags); |
pn = TAILQ_NEXT(pn, child); |
is_text = pnode_class(nc->node) == CLASS_TEXT; |
flags |= ARG_SPACE; |
nc = TAILQ_NEXT(nc, child); |
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if (nc == NULL || pnode_class(nc->node) != CLASS_TEXT) |
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is_text = 0; |
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if (is_text && (nc->flags & NFLAG_SPC) == 0) |
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flags &= ~ARG_SPACE; |
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else |
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flags |= ARG_SPACE; |
} |
} |
if (quote_now) |
if (quote_now) |
putchar('"'); |
putchar('"'); |
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f->parastate = PARA_MID; |
} |
} |
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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 215 macro_nodeline(struct format *f, const char *name, str |
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Line 246 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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{ |
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int ateos, inword; |
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para_check(f); |
switch (f->linestate) { |
switch (f->linestate) { |
case LINE_NEW: |
case LINE_NEW: |
break; |
break; |
Line 227 print_text(struct format *f, const char *word, int fla |
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Line 262 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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ateos = inword = 0; |
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while (*word != '\0') { |
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if (f->nofill == 0) { |
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switch (*word) { |
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case ' ': |
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if (ateos == 0) { |
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inword = 0; |
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break; |
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} |
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ateos = inword = 0; |
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/* Handle the end of a sentence. */ |
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while (*word == ' ') |
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word++; |
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switch (*word) { |
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case '\0': |
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break; |
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case '\'': |
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case '.': |
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fputs("\n\\&", stdout); |
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break; |
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default: |
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putchar('\n'); |
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break; |
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} |
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continue; |
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/* Detect the end of a sentence. */ |
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case '!': |
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case '.': |
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case '?': |
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if (inword > 1 && |
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(word[-2] != 'n' || word[-1] != 'c') && |
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(word[-2] != 'v' || word[-1] != 's')) |
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ateos = 1; |
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/* FALLTHROUGH */ |
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case '"': |
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case '\'': |
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case ')': |
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case ']': |
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inword = 0; |
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break; |
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default: |
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if (isalnum((unsigned char)*word)) |
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inword++; |
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ateos = 0; |
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break; |
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} |
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} |
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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->parastate = PARA_MID; |
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f->flags = 0; |
} |
} |
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/* |
/* |
Line 239 print_textnode(struct format *f, struct pnode *n) |
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Line 328 print_textnode(struct format *f, struct pnode *n) |
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{ |
{ |
struct pnode *nc; |
struct pnode *nc; |
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if (n->node == NODE_TEXT) |
if (n->node == NODE_TEXT || n->node == NODE_ESCAPE) |
print_text(f, n->b, ARG_SPACE); |
print_text(f, n->b, ARG_SPACE); |
else |
else |
TAILQ_FOREACH(nc, &n->childq, child) |
TAILQ_FOREACH(nc, &n->childq, child) |