Prologue Dd and Dt macros.

1 files changed, 166 insertions, 8 deletions

diff --git a/macro.c b/macro.c
index 6b8e5365..16d74306 100644
--- a/macro.c
+++ b/macro.c
@@ -1,4 +1,4 @@
-/* $Id: macro.c,v 1.4 2008/12/15 03:13:01 kristaps Exp $ */
+/* $Id: macro.c,v 1.5 2008/12/17 17:18:38 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -20,11 +20,15 @@
 #include <ctype.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 
 #include "private.h"
 
 #define	_CC(p)	((const char **)p)
 
+static	int	  xstrlcat(char *, const char *, size_t);
+static	int	  xstrlcpy(char *, const char *, size_t);
+static	int	  xstrcmp(const char *, const char *);
 static	int	  append_text(struct mdoc *, int, 
 			int, int, char *[]);
 static	int	  append_scoped(struct mdoc *, int, 
@@ -81,10 +85,25 @@ static int
 append_scoped(struct mdoc *mdoc, int tok, 
 		int pos, int sz, char *args[])
 {
+	enum mdoc_sec	 sec;
+
+	if (0 == sz) 
+		return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
 
 	switch (tok) {
 	 /* ======= ADD MORE MACRO CHECKS BELOW. ======= */
 	case (MDOC_Sh):
+		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):
 		break;
@@ -166,7 +185,7 @@ append_text(struct mdoc *mdoc, int tok,
 
 
 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;
 	char		 *args[MDOC_LINEARG_MAX], *p;
@@ -175,6 +194,9 @@ macro_text(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
 	lastpunct = 0;
 	j = 0;
 
+	if (SEC_PROLOGUE == mdoc->sec_lastn)
+		return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
 again:
 
 	lastarg = *pos;
@@ -224,19 +246,131 @@ again:
 
 
 int
-macro_scoped_implicit(struct mdoc *mdoc, 
-		int tok, int ppos, int *pos, char *buf)
+macro_prologue_dtitle(MACRO_PROT_ARGS)
+{
+	int		  c, 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;
+
+again:
+	lastarg = *pos;
+	c = args_next(mdoc, tok, pos, buf, &args[++j]);
+
+	if (0 == c) {
+		mdoc->sec_lastn = mdoc->sec_last = SEC_BODY; /* FIXME */
+		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);
+	} else if (-1 == c)
+		return(0);
+	
+	if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn
+			(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE))
+		return(0);
+
+	if (0 == j) {
+		if (xstrlcpy(mdoc->meta.title, args[0], META_TITLE_SZ))
+			goto again;
+		return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGS));
+
+	} 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_ARGS));
+
+	} 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_ARGS));
+	}
+
+	return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY));
+}
+
+
+int
+macro_prologue_ddate(MACRO_PROT_ARGS)
+{
+	int		  c, 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;
+
+again:
+
+	lastarg = *pos;
+	c = args_next(mdoc, tok, pos, buf, &args[++j]);
+	if (0 == c) {
+		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_ARGS));
+	} else if (-1 == c) 
+		return(0);
+	
+	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 17 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_ARGS));
+	if ( ! xstrlcat(date, " ", sizeof(date)))
+		return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGS));
+
+	goto again;
+	/* NOTREACHED */
+}
+
+
+int
+macro_scoped_implicit(MACRO_PROT_ARGS)
 {
 	int		  t, c, lastarg, j;
 	char		 *args[MDOC_LINEARG_MAX];
 	struct mdoc_node *n;
 
-	/*
-	 * Look for an implicit parent.
-	 */
-
 	assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags));
 
+	if (SEC_PROLOGUE == mdoc->sec_lastn)
+		return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE));
+
 	/* LINTED */
 	for (n = mdoc->last; n; n = n->parent) {
 		if (MDOC_BLOCK != n->type) 
@@ -281,3 +415,27 @@ again:
 
 	/* NOTREACHED */
 }
+
+
+static int
+xstrcmp(const char *p1, const char *p2)
+{
+
+	return(0 == strcmp(p1, p2));
+}
+
+
+static int
+xstrlcat(char *dst, const char *src, size_t sz)
+{
+
+	return(strlcat(dst, src, sz) < sz);
+}
+
+
+static int
+xstrlcpy(char *dst, const char *src, size_t sz)
+{
+
+	return(strlcpy(dst, src, sz) < sz);
+}