Broke apart macro_prologuexxx into prologue.

Fixed validation for line-scoped.
Merged const_arg and const.

1 files changed, 217 insertions, 0 deletions

diff --git a/prologue.c b/prologue.c
new file mode 100644
index 00000000..678851b6
--- /dev/null
+++ b/prologue.c
@@ -0,0 +1,217 @@
+/* $Id$ */
+/*
+ * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <assert.h>
+#include <stdlib.h>
+
+#include "private.h"
+
+static int		 prologue_dt(MACRO_PROT_ARGS);
+static int		 prologue_dd(MACRO_PROT_ARGS);
+static int		 prologue_os(MACRO_PROT_ARGS);
+
+static int
+prologue_dt(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);
+
+	if (0 == j) {
+		if (xstrlcpy(mdoc->meta.title, args[0], META_TITLE_SZ))
+			goto again;
+		return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM));
+
+	} 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));
+}
+
+
+static int
+prologue_os(MACRO_PROT_ARGS)
+{
+	int		  lastarg, j;
+	char		 *args[MDOC_LINEARG_MAX];
+
+	/* FIXME: if we use `Os' again... ? */
+
+	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 */
+}
+
+
+static int
+prologue_dd(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("$Mdocdate$", 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_prologue(MACRO_PROT_ARGS)
+{
+
+	switch (tok) {
+	case (MDOC_Dt):
+		return(prologue_dt(mdoc, tok, ppos, pos, buf));
+	case (MDOC_Dd):
+		return(prologue_dd(mdoc, tok, ppos, pos, buf));
+	case (MDOC_Os):
+		return(prologue_os(mdoc, tok, ppos, pos, buf));
+	default:
+		break;
+	}
+
+	abort();
+	/* NOTREACHED */
+}
+