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-rw-r--r--roff.c132
1 files changed, 83 insertions, 49 deletions
diff --git a/roff.c b/roff.c
index abd0f39b..a1e95baf 100644
--- a/roff.c
+++ b/roff.c
@@ -65,7 +65,7 @@ struct rofftok {
#define ROFF_PARSED (1 << 0) /* "Parsed". */
#define ROFF_CALLABLE (1 << 1) /* "Callable". */
#define ROFF_QUOTES (1 << 2) /* Quoted args. */
-#define ROFF_NOBLKCHILD (1 << 3) /* No blk children. */
+#define ROFF_SHALLOW (1 << 3) /* Nesting block. */
};
struct roffarg {
@@ -115,7 +115,8 @@ static int roffscan(int, const int *);
static int rofffindtok(const char *);
static int rofffindarg(const char *);
static int rofffindcallable(const char *);
-static int roffargs(int, char *, char **);
+static int roffargs(const struct rofftree *,
+ int, char *, char **);
static int roffargok(int, int);
static int roffnextopt(int, const char ***, char **);
static int roffparse(struct rofftree *, char *, size_t);
@@ -161,10 +162,10 @@ static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
/* Table of all known tokens. */
static const struct rofftok tokens[ROFF_MAX] = {
- {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
- { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
- { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
- { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Os */
+ {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
+ { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
+ { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
+ { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
{ roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
{ roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
{ roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
@@ -174,7 +175,7 @@ static const struct rofftok tokens[ROFF_MAX] = {
{ roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
{ roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
{ roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
- { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, 0 }, /* It */
+ { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
{ roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
@@ -185,74 +186,74 @@ static const struct rofftok tokens[ROFF_MAX] = {
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
{ roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Nd */ /* FIXME */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
- { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
+ { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
{ roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
- { roff_close, NULL, NULL, NULL, ROFF_Ao, ROFF_LAYOUT, 0 }, /* Ac */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Ao */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
- { roff_close, NULL, NULL, NULL, ROFF_Bo, ROFF_LAYOUT, 0 }, /* Bc */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bo */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Db */ /* XXX */
- { roff_close, NULL, NULL, NULL, ROFF_Do, ROFF_LAYOUT, 0 }, /* Dc */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Do */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
- { roff_close, NULL, NULL, NULL, ROFF_Eo, ROFF_LAYOUT, 0 }, /* Ec */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Eo */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
- { roff_close, NULL, NULL, NULL, ROFF_Po, ROFF_LAYOUT, 0 }, /* Pc */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Po */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
- { roff_close, NULL, NULL, NULL, ROFF_Qo, ROFF_LAYOUT, 0 }, /* Qc */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Qo */
+ { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
{ roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
{ roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
- { roff_close, NULL, NULL, NULL, ROFF_So, ROFF_LAYOUT, 0 }, /* Sc */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* So */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Sm */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_QUOTES }, /* Sy */
+ { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
@@ -474,22 +475,34 @@ textparse(const struct rofftree *tree, const char *buf, size_t sz)
static int
-roffargs(int tok, char *buf, char **argv)
+roffargs(const struct rofftree *tree,
+ int tok, char *buf, char **argv)
{
int i;
- (void)tok;/* FIXME: quotable strings? */
-
assert(tok >= 0 && tok < ROFF_MAX);
assert('.' == *buf);
/* LINTED */
for (i = 0; *buf && i < ROFF_MAXARG; i++) {
- argv[i] = buf++;
- while (*buf && ! isspace(*buf))
- buf++;
- if (0 == *buf) {
- continue;
+ if ('\"' == *buf) {
+ argv[i] = ++buf;
+ while (*buf && '\"' != *buf)
+ buf++;
+ if (0 == *buf) {
+ warnx("%s: unclosed quoted arg for "
+ "`%s' (line %zu)",
+ tree->rbuf->name,
+ toknames[tok],
+ tree->rbuf->line);
+ return(0);
+ }
+ } else {
+ argv[i] = buf++;
+ while (*buf && ! isspace(*buf))
+ buf++;
+ if (0 == *buf)
+ continue;
}
*buf++ = 0;
while (*buf && isspace(*buf))
@@ -497,10 +510,20 @@ roffargs(int tok, char *buf, char **argv)
}
assert(i > 0);
- if (i < ROFF_MAXARG)
- argv[i] = NULL;
+ if (ROFF_MAXARG == i && *buf) {
+ warnx("%s: too many args for `%s' (line %zu)",
+ tree->rbuf->name, toknames[tok],
+ tree->rbuf->line);
+ return(0);
+ }
+
+#ifdef DEBUG
+ (void)printf("argparse: %d arguments for `%s'\n",
+ i, toknames[tok]);
+#endif
- return(ROFF_MAXARG > i);
+ argv[i] = NULL;
+ return(1);
}
@@ -542,12 +565,9 @@ roffparse(struct rofftree *tree, char *buf, size_t sz)
} else if (ROFF_COMMENT == tokens[tok].type)
return(1);
- if ( ! roffargs(tok, buf, argv)) {
- warnx("%s: too many args to `%s' (line %zu)",
- tree->rbuf->name, toknames[tok],
- tree->rbuf->line);
+ if ( ! roffargs(tree, tok, buf, argv))
return(0);
- } else
+ else
argvp = (const char **)argv + 1;
/*
@@ -603,7 +623,16 @@ roffparse(struct rofftree *tree, char *buf, size_t sz)
n->tok == tokens[n->tok].ctx);
if (n->tok == tok)
break;
+ if (ROFF_SHALLOW & tokens[tok].flags) {
+ n = NULL;
+ break;
+ }
}
+
+ /*
+ * Create a new scope, as no previous one exists to
+ * close out.
+ */
if (NULL == n) {
#ifdef DEBUG
(void)printf("scope: new `%s'\n",
@@ -611,6 +640,11 @@ roffparse(struct rofftree *tree, char *buf, size_t sz)
#endif
return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
}
+
+ /*
+ * Close out all intermediary scoped blocks.
+ */
+
do {
t = tree->last->tok;
#ifdef DEBUG
generated by cgit (git 2.34.1) at 2024-11-06 00:43:52 +0000