Add mandoc.h, which will eventually replace compilers' inner enum errors with unified ones.

Add initial roff pre-processor shim, a compiler sitting outside of the other compilers that processes pure roff instructions.

1 files changed, 70 insertions, 18 deletions

diff --git a/main.c b/main.c
index aa864896..1175e2fa 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,4 @@
-/*	$Id: main.c,v 1.70 2010/05/15 16:20:12 joerg Exp $ */
+/*	$Id: main.c,v 1.71 2010/05/15 18:35:14 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -29,8 +29,10 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "mandoc.h"
 #include "mdoc.h"
 #include "man.h"
+#include "roff.h"
 #include "main.h"
 
 #define	UNCONST(a)	((void *)(uintptr_t)(const void *)(a))
@@ -70,6 +72,7 @@ struct	curparse {
 	const char	 *file;		/* Current parse. */
 	int		  fd;		/* Current parse. */
 	int		  wflags;
+	/* FIXME: set by max error */
 #define	WARN_WALL	 (1 << 0)	/* All-warnings mask. */
 #define	WARN_WERR	 (1 << 2)	/* Warnings->errors. */
 	int		  fflags;
@@ -82,6 +85,7 @@ struct	curparse {
 	enum intt	  inttype;	/* Input parsers... */
 	struct man	 *man;
 	struct mdoc	 *mdoc;
+	struct roff	 *roff;
 	enum outt	  outtype;	/* Output devices... */
 	out_mdoc	  outmdoc;
 	out_man	  	  outman;
@@ -95,9 +99,12 @@ static	void		  ffile(const char *, struct curparse *);
 static	int		  foptions(int *, char *);
 static	struct man	 *man_init(struct curparse *);
 static	struct mdoc	 *mdoc_init(struct curparse *);
-static	int		  merr(void *, int, int, const char *);
+static	struct roff	 *roff_init(struct curparse *);
+static	int		  merr(void *, int, int, const char *); /* DEPRECATED */
 static	int		  moptions(enum intt *, char *);
-static	int		  mwarn(void *, int, int, const char *);
+static	int		  mwarn(void *, int, int, const char *); /* DEPRECATED */
+static	int		  mmsg(enum mandocerr, void *, 
+				int, int, const char *);
 static	int		  pset(const char *, int, struct curparse *,
 				struct man **, struct mdoc **);
 static	int		  toptions(struct curparse *, char *);
@@ -177,6 +184,12 @@ main(int argc, char *argv[])
 
 	if (curp.outfree)
 		(*curp.outfree)(curp.outdata);
+	if (curp.mdoc)
+		mdoc_free(curp.mdoc);
+	if (curp.man)
+		man_free(curp.man);
+	if (curp.roff)
+		roff_free(curp.roff);
 
 	return((with_warning || with_error) ? 
 			EXIT_FAILURE :  EXIT_SUCCESS);
@@ -225,6 +238,14 @@ man_init(struct curparse *curp)
 }
 
 
+static struct roff *
+roff_init(struct curparse *curp)
+{
+
+	return(roff_alloc(mmsg, curp));
+}
+
+
 static struct mdoc *
 mdoc_init(struct curparse *curp)
 {
@@ -316,7 +337,7 @@ read_whole_file(struct curparse *curp, struct buf *fb, int *with_mmap)
 			return(0);
 		}
 		*with_mmap = 1;
-		fb->sz = st.st_size;
+		fb->sz = (size_t)st.st_size;
 		fb->buf = mmap(NULL, fb->sz, PROT_READ, 
 				MAP_FILE, curp->fd, 0);
 		if (fb->buf != MAP_FAILED)
@@ -342,7 +363,7 @@ read_whole_file(struct curparse *curp, struct buf *fb, int *with_mmap)
 			if (! resize_buf(fb, 65536))
 				break;
 		}
-		ssz = read(curp->fd, fb->buf + off, fb->sz - off);
+		ssz = read(curp->fd, fb->buf + (int)off, fb->sz - off);
 		if (ssz == 0) {
 			fb->sz = off;
 			return(1);
@@ -351,7 +372,7 @@ read_whole_file(struct curparse *curp, struct buf *fb, int *with_mmap)
 			perror(curp->file);
 			break;
 		}
-		off += ssz;
+		off += (size_t)ssz;
 	}
 
 	free(fb->buf);
@@ -366,11 +387,14 @@ fdesc(struct curparse *curp)
 {
 	struct buf	 ln, blk;
 	int		 i, pos, lnn, lnn_start, with_mmap;
+	enum rofferr	 re;
 	struct man	*man;
 	struct mdoc	*mdoc;
+	struct roff	*roff;
 
 	man = NULL;
 	mdoc = NULL;
+	roff = NULL;
 	memset(&ln, 0, sizeof(struct buf));
 
 	/*
@@ -378,9 +402,14 @@ fdesc(struct curparse *curp)
 	 * memory mapped.  ln is a line buffer and grows on-demand.
 	 */
 
-	if (!read_whole_file(curp, &blk, &with_mmap))
+	if ( ! read_whole_file(curp, &blk, &with_mmap))
 		return;
 
+	if (NULL == curp->roff) 
+		curp->roff = roff_init(curp);
+	if (NULL == (roff = curp->roff))
+		goto bailout;
+
 	for (i = 0, lnn = 1; i < (int)blk.sz;) {
 		pos = 0;
 		lnn_start = lnn;
@@ -436,7 +465,13 @@ fdesc(struct curparse *curp)
  		if (pos >= (int)ln.sz)
 			if (! resize_buf(&ln, 256))
 				goto bailout;
-		ln.buf[pos] = 0;
+		ln.buf[pos] = '\0';
+
+		re = roff_parseln(roff, lnn_start, &ln.buf, &ln.sz);
+		if (ROFF_IGN == re)
+			continue;
+		else if (ROFF_ERR == re)
+			goto bailout;
 
 		/* If unset, assign parser in pset(). */
 
@@ -445,9 +480,9 @@ fdesc(struct curparse *curp)
 
 		/* Pass down into parsers. */
 
-		if (man && ! man_parseln(man, lnn, ln.buf))
+		if (man && ! man_parseln(man, lnn_start, ln.buf))
 			goto bailout;
-		if (mdoc && ! mdoc_parseln(mdoc, lnn, ln.buf))
+		if (mdoc && ! mdoc_parseln(mdoc, lnn_start, ln.buf))
 			goto bailout;
 	}
 
@@ -462,6 +497,8 @@ fdesc(struct curparse *curp)
 		goto bailout;
 	if (man && ! man_endparse(man))
 		goto bailout;
+	if (roff && ! roff_endparse(roff))
+		goto bailout;
 
 	/* If unset, allocate output dev now (if applicable). */
 
@@ -502,20 +539,19 @@ fdesc(struct curparse *curp)
 		(*curp->outmdoc)(curp->outdata, mdoc);
 
  cleanup:
-	if (curp->mdoc) {
-		mdoc_free(curp->mdoc);
-		curp->mdoc = NULL;
-	}
-	if (curp->man) {
-		man_free(curp->man);
-		curp->man = NULL;
-	}
+	if (mdoc)
+		mdoc_reset(mdoc);
+	if (man)
+		man_reset(man);
+	if (roff)
+		roff_reset(roff);
 	if (ln.buf)
 		free(ln.buf);
 	if (with_mmap)
 		munmap(blk.buf, blk.sz);
 	else
 		free(blk.buf);
+
 	return;
 
  bailout:
@@ -737,3 +773,19 @@ mwarn(void *arg, int line, int col, const char *msg)
 	return(1);
 }
 
+/*
+ * XXX: this is experimental code that will eventually become the
+ * generic means of covering all warnings and errors!
+ */
+/* ARGSUSED */
+static int
+mmsg(enum mandocerr t, void *arg, int ln, int col, const char *msg)
+{
+	struct curparse *cp;
+
+	cp = (struct curparse *)arg;
+
+	fprintf(stderr, "%s:%d:%d: %s\n", cp->file, ln, col + 1, msg);
+
+	return(1);
+}