-/* $Id: macro.c,v 1.4 2008/12/15 03:13:01 kristaps Exp $ */
+/* $Id: macro.c,v 1.11 2008/12/29 18:08:44 kristaps Exp $ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
+#ifdef __linux__
+#include <time.h>
+#endif
#include "private.h"
+/* FIXME: maxlineargs should be per LINE, no per TOKEN. */
+
#define _CC(p) ((const char **)p)
+static int scope_rewind_exp(struct mdoc *, int, int, int);
+static int scope_rewind_imp(struct mdoc *, int, int);
static int append_text(struct mdoc *, int,
int, int, char *[]);
-static int append_scoped(struct mdoc *, int,
- int, int, char *[]);
-static int args_next(struct mdoc *, int,
- int *, char *, char **);
+static int append_const(struct mdoc *, int, int, int, char *[]);
+static int append_scoped(struct mdoc *, int, int, int,
+ const char *[], int, const struct mdoc_arg *);
+static int append_delims(struct mdoc *, int, int *, char *);
static int
-args_next(struct mdoc *mdoc, int tok,
- int *pos, char *buf, char **v)
+append_delims(struct mdoc *mdoc, int tok, int *pos, char *buf)
{
+ int c, lastarg;
+ char *p;
if (0 == buf[*pos])
- return(0);
+ return(1);
- assert( ! isspace(buf[*pos]));
+ mdoc_msg(mdoc, *pos, "`%s' flushing punctuation",
+ mdoc_macronames[tok]);
- if ('\"' == buf[*pos]) {
- (void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_QUOTE);
- return(-1);
+ for (;;) {
+ lastarg = *pos;
+ c = mdoc_args(mdoc, tok, pos, buf, 0, &p);
+ if (ARGS_ERROR == c)
+ return(0);
+ else if (ARGS_EOLN == c)
+ break;
+ assert(mdoc_isdelim(p));
+ mdoc_word_alloc(mdoc, lastarg, p);
}
- *v = &buf[*pos];
+ return(1);
+}
+
- /* Scan ahead to end of token. */
+static int
+scope_rewind_imp(struct mdoc *mdoc, int ppos, int tok)
+{
+ struct mdoc_node *n;
+ int t;
- while (buf[*pos] && ! isspace(buf[*pos]))
- (*pos)++;
+ n = mdoc->last ? mdoc->last->parent : NULL;
- if (buf[*pos] && buf[*pos + 1] && '\\' == buf[*pos]) {
- (void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_WS);
- return(-1);
+ /* LINTED */
+ for ( ; n; n = n->parent) {
+ if (MDOC_BLOCK != n->type)
+ continue;
+ if (tok == (t = n->data.block.tok))
+ break;
+ if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags))
+ continue;
+ return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK));
}
- if (0 == buf[*pos])
+ if (n) {
+ mdoc->last = n;
+ mdoc_msg(mdoc, ppos, "scope: rewound implicit `%s'",
+ mdoc_macronames[tok]);
return(1);
+ }
- /* Scan ahead over trailing whitespace. */
+ mdoc_msg(mdoc, ppos, "scope: new implicit `%s'",
+ mdoc_macronames[tok]);
+ return(1);
+}
- buf[(*pos)++] = 0;
- while (buf[*pos] && isspace(buf[*pos]))
- (*pos)++;
- if (0 == buf[*pos])
- if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
- return(-1);
+static int
+scope_rewind_exp(struct mdoc *mdoc, int ppos, int tok, int dst)
+{
+ struct mdoc_node *n;
+
+ assert(mdoc->last);
+
+ /* LINTED */
+ for (n = mdoc->last->parent; n; n = n->parent) {
+ if (MDOC_BLOCK != n->type)
+ continue;
+ if (dst == n->data.block.tok)
+ break;
+ return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK));
+ }
+
+ if (NULL == (mdoc->last = n))
+ return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NOCTX));
+
+ mdoc_msg(mdoc, ppos, "scope: rewound explicit `%s' to `%s'",
+ mdoc_macronames[tok], mdoc_macronames[dst]);
return(1);
}
static int
-append_scoped(struct mdoc *mdoc, int tok,
- int pos, int sz, char *args[])
+append_scoped(struct mdoc *mdoc, int tok, int pos,
+ int sz, const char *args[],
+ int argc, const struct mdoc_arg *argv)
{
+ enum mdoc_sec sec;
+ struct mdoc_node *node;
switch (tok) {
/* ======= ADD MORE MACRO CHECKS BELOW. ======= */
case (MDOC_Sh):
+ if (0 == sz)
+ return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
+
+ sec = mdoc_atosec((size_t)sz, _CC(args));
+ if (SEC_CUSTOM != sec && sec < mdoc->sec_lastn)
+ if ( ! mdoc_warn(mdoc, tok, pos, WARN_SEC_OO))
+ return(0);
+
+ if (SEC_BODY == mdoc->sec_last && SEC_NAME != sec)
+ return(mdoc_err(mdoc, tok, pos, ERR_SEC_NAME));
+
+ if (SEC_CUSTOM != sec)
+ mdoc->sec_lastn = sec;
+ mdoc->sec_last = sec;
break;
+
case (MDOC_Ss):
+ if (0 == sz)
+ return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
+ break;
+
+ case (MDOC_Bd):
+ assert(mdoc->last);
+ node = mdoc->last->parent;
+ /* LINTED */
+ for ( ; node; node = node->parent) {
+ if (node->type != MDOC_BLOCK)
+ continue;
+ if (node->data.block.tok != MDOC_Bd)
+ continue;
+ return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NONEST));
+ }
break;
+
+ case (MDOC_Bl):
+ break;
+
/* ======= ADD MORE MACRO CHECKS ABOVE. ======= */
default:
abort();
/* NOTREACHED */
}
- assert(sz >= 0);
- args[sz] = NULL;
- mdoc_block_alloc(mdoc, pos, tok, 0, NULL);
+ mdoc_block_alloc(mdoc, pos, tok, (size_t)argc, argv);
mdoc_head_alloc(mdoc, pos, tok, (size_t)sz, _CC(args));
mdoc_body_alloc(mdoc, pos, tok);
return(1);
}
+static int
+append_const(struct mdoc *mdoc, int tok,
+ int pos, int sz, char *args[])
+{
+
+ switch (tok) {
+ /* ======= ADD MORE MACRO CHECKS BELOW. ======= */
+ case (MDOC_At):
+ /* This needs special handling. */
+ if (0 == sz)
+ break;
+ else if (sz > 2)
+ return(mdoc_err(mdoc, tok, pos, ERR_ARGS_LE2));
+
+ if (ATT_DEFAULT != mdoc_atoatt(args[0])) {
+ mdoc_elem_alloc(mdoc, pos, tok, 0,
+ NULL, 1, _CC(&args[0]));
+ } else {
+ mdoc_elem_alloc(mdoc, pos, tok,
+ 0, NULL, 0, NULL);
+ if (mdoc_isdelim(args[0]))
+ return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT));
+ mdoc_word_alloc(mdoc, pos, args[0]);
+ }
+
+ if (1 == sz)
+ return(1);
+ if (mdoc_isdelim(args[1]))
+ return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT));
+ mdoc_word_alloc(mdoc, pos, args[1]);
+ return(1);
+
+ case (MDOC_Bx):
+ /* FALLTHROUGH */
+ case (MDOC_Bsx):
+ /* FALLTHROUGH */
+ case (MDOC_Os):
+ /* FALLTHROUGH */
+ case (MDOC_Fx):
+ /* FALLTHROUGH */
+ case (MDOC_Nx):
+ assert(sz <= 1);
+ break;
+
+ case (MDOC_Ux):
+ assert(0 == sz);
+ break;
+
+ case (MDOC_Bt):
+ /* FALLTHROUGH */
+ case (MDOC_Ud):
+ if (0 == sz)
+ break;
+ return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ0));
+
+ /* ======= ADD MORE MACRO CHECKS ABOVE. ======= */
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ mdoc_elem_alloc(mdoc, pos, tok, 0, NULL, (size_t)sz, _CC(args));
+ return(1);
+}
+
+
static int
append_text(struct mdoc *mdoc, int tok,
int pos, int sz, char *args[])
switch (tok) {
/* ======= ADD MORE MACRO CHECKS BELOW. ======= */
+ case (MDOC_Pp):
+ if (0 == sz)
+ break;
+ if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0))
+ return(0);
+ break;
+
case (MDOC_Ft):
/* FALLTHROUGH */
case (MDOC_Li):
if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1))
return(0);
break;
+
case (MDOC_Ar):
/* FALLTHROUGH */
case (MDOC_Cm):
/* FALLTHROUGH */
case (MDOC_Fl):
+ /* These can have no arguments. */
break;
+
case (MDOC_Ad):
/* FALLTHROUGH */
case (MDOC_Em):
/* NOTREACHED */
}
- mdoc_elem_alloc(mdoc, pos, tok, 0,
- NULL, (size_t)sz, _CC(args));
+ mdoc_elem_alloc(mdoc, pos, tok, 0, NULL, (size_t)sz, _CC(args));
return(1);
}
int
-macro_text(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
+macro_text(MACRO_PROT_ARGS)
{
- int lastarg, c, lasttok, lastpunct, j;
+ int lastarg, lastpunct, c, j;
char *args[MDOC_LINEARG_MAX], *p;
- lasttok = ppos;
- lastpunct = 0;
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_Pp):
+ /* `.Pp' ignored when following `.Sh' or `.Ss'. */
+ assert(mdoc->last);
+ if (MDOC_BODY != mdoc->last->type)
+ break;
+ switch (mdoc->last->data.body.tok) {
+ case (MDOC_Ss):
+ /* FALLTHROUGH */
+ case (MDOC_Sh):
+ if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_AFTER_BLK))
+ return(0);
+ return(1);
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ /* Process line parameters. */
+
j = 0;
+ lastarg = ppos;
+ lastpunct = 0;
again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ /*
+ * Parse out the next argument, unquoted and unescaped. If
+ * we're a word (which may be punctuation followed eventually by
+ * a real word), then fall into checking for callables. If
+ * only punctuation remains and we're the first, then flush
+ * arguments, punctuation and exit; else, return to the caller.
+ */
lastarg = *pos;
- c = args_next(mdoc, tok, pos, buf, &args[j]);
-
- if (-1 == c)
+
+ switch (mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &args[j])) {
+ case (ARGS_ERROR):
return(0);
- if (0 == c && ! lastpunct)
- return(append_text(mdoc, tok, lasttok, j, args));
- else if (0 == c)
- return(1);
+ case (ARGS_WORD):
+ break;
+ case (ARGS_PUNCT):
+ if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
+ case (ARGS_EOLN):
+ if (lastpunct)
+ return(1);
+ return(append_text(mdoc, tok, ppos, j, args));
+ default:
+ abort();
+ /* NOTREACHED */
+ }
- /* Command found. */
+ /*
+ * Command found. First flush out arguments, then call the
+ * command. If we're the line macro when it exits, flush
+ * terminal punctuation.
+ */
if (MDOC_MAX != (c = mdoc_find(mdoc, args[j]))) {
- if ( ! lastpunct)
- if ( ! append_text(mdoc, tok, lasttok, j, args))
- return(0);
- return(mdoc_macro(mdoc, c, lastarg, pos, buf));
+ if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args))
+ return(0);
+ if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
}
- /* Word found. */
+ /* Word/non-term-punctuation found. */
if ( ! mdoc_isdelim(args[j])) {
+ /* Words are appended to the array of arguments. */
j++;
+ lastpunct = 0;
goto again;
}
- /* Punctuation found. */
+ /*
+ * For punctuation, flush all collected words, then flush
+ * punctuation, then start collecting again. Of course, this
+ * is non-terminal punctuation.
+ */
- p = args[j]; /* Save argument (NULL-ified in append). */
+ p = args[j];
+ if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args))
+ return(0);
- if ( ! lastpunct)
- if ( ! append_text(mdoc, tok, lasttok, j, args))
+ mdoc_word_alloc(mdoc, lastarg, p);
+ j = 0;
+ lastpunct = 1;
+
+ goto again;
+ /* NOTREACHED */
+}
+
+
+int
+macro_prologue_dtitle(MACRO_PROT_ARGS)
+{
+ int lastarg, j;
+ char *args[MDOC_LINEARG_MAX];
+
+ if (SEC_PROLOGUE != mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE));
+ if (0 == mdoc->meta.date)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO));
+ if (mdoc->meta.title[0])
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP));
+
+ j = -1;
+ lastarg = ppos;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+
+ switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) {
+ case (ARGS_EOLN):
+ if (mdoc->meta.title)
+ return(1);
+ if ( ! mdoc_warn(mdoc, tok, ppos, WARN_ARGS_GE1))
return(0);
+ (void)xstrlcpy(mdoc->meta.title,
+ "UNTITLED", META_TITLE_SZ);
+ return(1);
+ case (ARGS_ERROR):
+ return(0);
+ default:
+ break;
+ }
+
+ if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn
+ (mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+ return(0);
- args[j] = p;
+ if (0 == j) {
+ if (xstrlcpy(mdoc->meta.title, args[0], META_TITLE_SZ))
+ goto again;
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
- mdoc_word_alloc(mdoc, lastarg, args[j]);
- lastpunct = 1;
- j = 0;
+ } else if (1 == j) {
+ mdoc->meta.msec = mdoc_atomsec(args[1]);
+ if (MSEC_DEFAULT != mdoc->meta.msec)
+ goto again;
+ return(mdoc_err(mdoc, tok, -1, ERR_SYNTAX_ARGFORM));
+
+ } else if (2 == j) {
+ mdoc->meta.vol = mdoc_atovol(args[2]);
+ if (VOL_DEFAULT != mdoc->meta.vol)
+ goto again;
+ mdoc->meta.arch = mdoc_atoarch(args[2]);
+ if (ARCH_DEFAULT != mdoc->meta.arch)
+ goto again;
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
+ }
+
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+}
+
+
+int
+macro_prologue_os(MACRO_PROT_ARGS)
+{
+ int lastarg, j;
+ char *args[MDOC_LINEARG_MAX];
+
+ if (SEC_PROLOGUE != mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE));
+ if (0 == mdoc->meta.title[0])
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO));
+ if (mdoc->meta.os[0])
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP));
+
+ j = -1;
+ lastarg = ppos;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+
+ switch (mdoc_args(mdoc, tok, pos, buf,
+ ARGS_QUOTED, &args[++j])) {
+ case (ARGS_EOLN):
+ mdoc->sec_lastn = mdoc->sec_last = SEC_BODY;
+ return(1);
+ case (ARGS_ERROR):
+ return(0);
+ default:
+ break;
+ }
+
+ if ( ! xstrlcat(mdoc->meta.os, args[j], sizeof(mdoc->meta.os)))
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
+ if ( ! xstrlcat(mdoc->meta.os, " ", sizeof(mdoc->meta.os)))
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
goto again;
+ /* NOTREACHED */
+}
+
+
+int
+macro_prologue_ddate(MACRO_PROT_ARGS)
+{
+ int lastarg, j;
+ char *args[MDOC_LINEARG_MAX], date[64];
+
+ if (SEC_PROLOGUE != mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE));
+ if (mdoc->meta.title[0])
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO));
+ if (mdoc->meta.date)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP));
+
+ j = -1;
+ date[0] = 0;
+ lastarg = ppos;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+ switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) {
+ case (ARGS_EOLN):
+ if (mdoc->meta.date)
+ return(1);
+ mdoc->meta.date = mdoc_atotime(date);
+ if (mdoc->meta.date)
+ return(1);
+ return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGFORM));
+ case (ARGS_ERROR):
+ return(0);
+ default:
+ break;
+ }
+
+ if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn
+ (mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+ return(0);
+
+ if (0 == j) {
+ if (xstrcmp("$Mdocdate: December 29 2008 $", args[j])) {
+ mdoc->meta.date = time(NULL);
+ goto again;
+ } else if (xstrcmp("$Mdocdate:", args[j]))
+ goto again;
+ } else if (4 == j)
+ if ( ! xstrcmp("$", args[j]))
+ goto again;
+
+ if ( ! xstrlcat(date, args[j], sizeof(date)))
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
+ if ( ! xstrlcat(date, " ", sizeof(date)))
+ return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
+ goto again;
/* NOTREACHED */
}
int
-macro_scoped_implicit(struct mdoc *mdoc,
- int tok, int ppos, int *pos, char *buf)
+macro_scoped_explicit(MACRO_PROT_ARGS)
{
- int t, c, lastarg, j;
- char *args[MDOC_LINEARG_MAX];
+ int c, lastarg, j;
+ struct mdoc_arg argv[MDOC_LINEARG_MAX];
struct mdoc_node *n;
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
/*
- * Look for an implicit parent.
+ * First close out the explicit scope. The `end' tags (such as
+ * `.El' to `.Bl' don't cause anything to happen: we merely
+ * readjust our last parse point.
*/
- assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags));
+ switch (tok) {
+ case (MDOC_El):
+ return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bl));
+ case (MDOC_Ed):
+ return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bd));
+ default:
+ break;
+ }
- /* LINTED */
- for (n = mdoc->last; n; n = n->parent) {
- if (MDOC_BLOCK != n->type)
- continue;
- if (tok == (t = n->data.block.tok))
+ assert(MDOC_EXPLICIT & mdoc_macros[tok].flags);
+
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_Bl):
+ /* FALLTHROUGH */
+ case (MDOC_Bd):
+ /* `.Pp' ignored when preceding `.Bl' or `.Bd'. */
+ assert(mdoc->last);
+ if (MDOC_ELEM != mdoc->last->type)
break;
- if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags))
+ if (MDOC_Pp != mdoc->last->data.elem.tok)
+ break;
+ if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK))
+ return(0);
+ assert(mdoc->last->prev);
+ n = mdoc->last;
+ mdoc->last = mdoc->last->prev;
+ mdoc->last->next = NULL;
+ mdoc_node_free(n);
+ break;
+ default:
+ break;
+ }
+
+ lastarg = *pos;
+
+ for (j = 0; j < MDOC_LINEARG_MAX; j++) {
+ lastarg = *pos;
+ c = mdoc_argv(mdoc, tok, &argv[j], pos, buf);
+ if (0 == c)
+ break;
+ else if (1 == c)
continue;
- return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK));
+
+ mdoc_argv_free(j, argv);
+ return(0);
}
- if (n) {
- mdoc->last = n;
- mdoc_msg(mdoc, ppos, "scope: rewound `%s'",
- mdoc_macronames[tok]);
- } else
- mdoc_msg(mdoc, ppos, "scope: new `%s'",
- mdoc_macronames[tok]);
+ if (MDOC_LINEARG_MAX == j) {
+ mdoc_argv_free(j, argv);
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+ }
+
+ c = append_scoped(mdoc, tok, ppos, 0, NULL, j, argv);
+ mdoc_argv_free(j, argv);
+ return(c);
+}
+
+
+/*
+ * Implicity-scoped macros, like `.Ss', have a scope that terminates
+ * with a subsequent call to the same macro. Implicit macros cannot
+ * break the scope of explicitly-scoped macros; however, they can break
+ * the scope of other implicit macros (so `.Sh' can break `.Ss'). This
+ * is ok with macros like `.It' because they exist only within an
+ * explicit context.
+ *
+ * These macros put line arguments (which it's allowed to have) into the
+ * HEAD section and open a BODY scope to be used until the macro scope
+ * closes.
+ */
+int
+macro_scoped_implicit(MACRO_PROT_ARGS)
+{
+ int lastarg, j;
+ char *args[MDOC_LINEARG_MAX];
+ struct mdoc_node *n;
+
+ assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags));
+
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_Ss):
+ /* FALLTHROUGH */
+ case (MDOC_Sh):
+ /* `.Pp' ignored when preceding `.Ss' or `.Sh'. */
+ if (NULL == mdoc->last)
+ break;
+ if (MDOC_ELEM != mdoc->last->type)
+ break;
+ if (MDOC_Pp != mdoc->last->data.elem.tok)
+ break;
+ if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK))
+ return(0);
+ assert(mdoc->last->prev);
+ n = mdoc->last;
+ mdoc_msg(mdoc, ppos, "removing prior `Pp' macro");
+ mdoc->last = mdoc->last->prev;
+ mdoc->last->next = NULL;
+ mdoc_node_free(n);
+ break;
+ default:
+ break;
+ }
+
+ /* Rewind our scope. */
+
+ if ( ! scope_rewind_imp(mdoc, ppos, tok))
+ return(0);
j = 0;
+ lastarg = ppos;
+
+ /*
+ * Process until we hit a line. Note that current implicit
+ * macros don't have any arguments, so we don't need to do any
+ * argument processing.
+ */
again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
lastarg = *pos;
- c = args_next(mdoc, tok, pos, buf, &args[j]);
+
+ switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[j])) {
+ case (ARGS_ERROR):
+ return(0);
+ case (ARGS_EOLN):
+ return(append_scoped(mdoc, tok, ppos, j, _CC(args), 0, NULL));
+ default:
+ break;
+ }
+
+ if (MDOC_MAX != mdoc_find(mdoc, args[j]))
+ if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+ return(0);
+
+ j++;
+ goto again;
+ /* NOTREACHED */
+}
+
+
+/*
+ * A line-scoped macro opens a scope for the contents of its line, which
+ * are placed under the HEAD node. Punctuation trailing the line is put
+ * as a sibling to the HEAD node, under the BLOCK node.
+ */
+int
+macro_scoped_line(MACRO_PROT_ARGS)
+{
+ int lastarg, c, j;
+ char *p;
+ struct mdoc_node *n;
+
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ assert(1 == ppos);
- if (-1 == c)
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_D1):
+ /* FALLTHROUGH */
+ case (MDOC_Dl):
+ /* These can't be nested in a display block. */
+ assert(mdoc->last);
+ for (n = mdoc->last->parent ; n; n = n->parent)
+ if (MDOC_BLOCK != n->type)
+ continue;
+ else if (MDOC_Bd == n->data.block.tok)
+ break;
+ if (NULL == n)
+ break;
+ return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NONEST));
+ default:
+ break;
+ }
+
+ /*
+ * All line-scoped macros have a HEAD and optionally a BODY
+ * section. We open our scope here; when we exit this function,
+ * we'll rewind our scope appropriately.
+ */
+
+ mdoc_block_alloc(mdoc, ppos, tok, 0, NULL);
+ mdoc_head_alloc(mdoc, ppos, tok, 0, NULL);
+
+ /* Process line parameters. */
+
+ j = 0;
+ lastarg = ppos;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+ c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p);
+
+ switch (c) {
+ case (ARGS_ERROR):
return(0);
- if (0 == c)
- return(append_scoped(mdoc, tok, ppos, j, args));
+ case (ARGS_WORD):
+ break;
+ case (ARGS_PUNCT):
+ if ( ! append_delims(mdoc, tok, pos, buf))
+ return(0);
+ return(scope_rewind_imp(mdoc, ppos, tok));
+ case (ARGS_EOLN):
+ return(scope_rewind_imp(mdoc, ppos, tok));
+ default:
+ abort();
+ /* NOTREACHED */
+ }
- /* Command found. */
+ if (MDOC_MAX != (c = mdoc_find(mdoc, p))) {
+ if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf))
+ return(0);
+ if ( ! append_delims(mdoc, tok, pos, buf))
+ return(0);
+ return(scope_rewind_imp(mdoc, ppos, tok));
+ }
- if (MDOC_MAX != (c = mdoc_find(mdoc, args[j])))
- if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+ if (mdoc_isdelim(p))
+ j = 0;
+
+ mdoc_word_alloc(mdoc, lastarg, p);
+ goto again;
+ /* NOTREACHED */
+}
+
+
+/*
+ * Partial-line scope is identical to line scope (macro_scoped_line())
+ * except that trailing punctuation is appended to the BLOCK, instead of
+ * contained within the HEAD.
+ */
+int
+macro_scoped_pline(MACRO_PROT_ARGS)
+{
+ int lastarg, c, j;
+ char *p;
+
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_Ql):
+ if ( ! mdoc_warn(mdoc, tok, ppos, WARN_COMPAT_TROFF))
return(0);
+ break;
+ default:
+ break;
+ }
- /* Word found. */
+ mdoc_block_alloc(mdoc, ppos, tok, 0, NULL);
+ mdoc_head_alloc(mdoc, ppos, tok, 0, NULL);
- j++;
+ /* Process line parameters. */
+
+ j = 0;
+ lastarg = ppos;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+ c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p);
+
+ switch (c) {
+ case (ARGS_ERROR):
+ return(0);
+ case (ARGS_WORD):
+ break;
+ case (ARGS_PUNCT):
+ if ( ! scope_rewind_imp(mdoc, ppos, tok))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
+ case (ARGS_EOLN):
+ return(scope_rewind_imp(mdoc, ppos, tok));
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ if (MDOC_MAX != (c = mdoc_find(mdoc, p))) {
+ if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf))
+ return(0);
+ if ( ! scope_rewind_imp(mdoc, ppos, tok))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
+ }
+
+ if (mdoc_isdelim(p))
+ j = 0;
+
+ mdoc_word_alloc(mdoc, lastarg, p);
+ goto again;
+ /* NOTREACHED */
+}
+
+
+/*
+ * A delimited-constant macro is similar to a general text macro: the
+ * macro is followed by a 0 or 1 arguments (possibly-unspecified) then
+ * terminating punctuation, other words, or another callable macro.
+ */
+int
+macro_constant_delimited(MACRO_PROT_ARGS)
+{
+ int lastarg, flushed, c, maxargs;
+ char *p, *pp;
+
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ /* Process line parameters. */
+
+ lastarg = ppos;
+ flushed = 0;
+
+ /* Token pre-processing. */
+
+ switch (tok) {
+ case (MDOC_Ux):
+ maxargs = 0;
+ break;
+ default:
+ maxargs = 1;
+ break;
+ }
+
+again:
+ lastarg = *pos;
+
+ switch (mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p)) {
+ case (ARGS_ERROR):
+ return(0);
+ case (ARGS_WORD):
+ break;
+ case (ARGS_PUNCT):
+ if ( ! flushed && ! append_const(mdoc, tok, ppos, 0, &p))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
+ case (ARGS_EOLN):
+ if (flushed)
+ return(1);
+ return(append_const(mdoc, tok, ppos, 0, &p));
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ /* Accepts no arguments: flush out symbol and continue. */
+
+ if (0 == maxargs) {
+ pp = p;
+ if ( ! append_const(mdoc, tok, ppos, 0, &p))
+ return(0);
+ p = pp;
+ flushed = 1;
+ }
+
+ if (MDOC_MAX != (c = mdoc_find(mdoc, p))) {
+ if ( ! flushed && ! append_const(mdoc, tok, ppos, 0, &p))
+ return(0);
+ if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf))
+ return(0);
+ if (ppos > 1)
+ return(1);
+ return(append_delims(mdoc, tok, pos, buf));
+ }
+
+ /*
+ * We only accept one argument; subsequent tokens are considered
+ * as literal words (until a macro).
+ */
+
+ if ( ! flushed && ! mdoc_isdelim(p)) {
+ if ( ! append_const(mdoc, tok, ppos, 1, &p))
+ return(0);
+ flushed = 1;
+ goto again;
+ } else if ( ! flushed) {
+ pp = p;
+ if ( ! append_const(mdoc, tok, ppos, 0, &p))
+ return(0);
+ p = pp;
+ flushed = 1;
+ }
+
+ mdoc_word_alloc(mdoc, lastarg, p);
goto again;
+ /* NOTREACHED */
+}
+
+
+int
+macro_constant(MACRO_PROT_ARGS)
+{
+ int lastarg, j;
+ char *args[MDOC_LINEARG_MAX];
+
+ if (SEC_PROLOGUE == mdoc->sec_lastn)
+ return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
+ j = 0;
+
+again:
+ if (j == MDOC_LINEARG_MAX)
+ return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+
+ lastarg = *pos;
+ switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[j])) {
+ case (ARGS_ERROR):
+ return(0);
+ case (ARGS_WORD):
+ break;
+ case (ARGS_EOLN):
+ return(append_const(mdoc, tok, ppos, j, args));
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ if (MDOC_MAX != mdoc_find(mdoc, args[j]))
+ if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+ return(0);
+
+ j++;
+ goto again;
/* NOTREACHED */
}
git.ckatri.com / mandoc.git / blobdiff