=================================================================== RCS file: /cvs/mandoc/roff.c,v retrieving revision 1.13 retrieving revision 1.78 diff -u -p -r1.13 -r1.78 --- mandoc/roff.c 2008/11/27 17:27:50 1.13 +++ mandoc/roff.c 2010/05/16 22:28:33 1.78 @@ -1,1075 +1,554 @@ -/* $Id: roff.c,v 1.13 2008/11/27 17:27:50 kristaps Exp $ */ +/* $Id: roff.c,v 1.78 2010/05/16 22:28:33 kristaps Exp $ */ /* - * Copyright (c) 2008 Kristaps Dzonsons + * Copyright (c) 2010 Kristaps Dzonsons * * 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. + * 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. + * 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. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #include -#include -#include -#include #include -#include #include -#include +#include -#include "libmdocml.h" -#include "private.h" +#include "mandoc.h" +#include "roff.h" -/* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */ +#define ROFF_CTL(c) \ + ('.' == (c) || '\'' == (c)) +#if 0 +#define ROFF_MDEBUG(p, str) \ + fprintf(stderr, "%s: %s (%d:%d)\n", (str), \ + roffs[(p)->last->tok].name, \ + (p)->last->line, (p)->last->col) +#else +#define ROFF_MDEBUG(p, str) while (/* CONSTCOND */ 0) +#endif -/* FIXME: warn about "X section only" macros. */ +enum rofft { + ROFF_if, + ROFF_ig, + ROFF_cblock, + ROFF_ccond, +#if 0 + ROFF_am, + ROFF_ami, + ROFF_de, + ROFF_dei, + ROFF_close, +#endif + ROFF_MAX +}; -/* FIXME: warn about empty lists. */ - -/* FIXME: ; : } ) (etc.) after text macros? */ - -/* FIXME: NAME section needs specific elements. */ - -#define ROFF_MAXARG 32 - -enum roffd { - ROFF_ENTER = 0, - ROFF_EXIT +struct roff { + struct roffnode *last; /* leaf of stack */ + mandocmsg msg; /* err/warn/fatal messages */ + void *data; /* privdata for messages */ }; -enum rofftype { - ROFF_COMMENT, - ROFF_TEXT, - ROFF_LAYOUT, - ROFF_SPECIAL +struct roffnode { + enum rofft tok; /* type of node */ + struct roffnode *parent; /* up one in stack */ + char *end; /* end-token: custom */ + int line; /* parse line */ + int col; /* parse col */ + int endspan; }; -#define ROFFCALL_ARGS \ - int tok, struct rofftree *tree, \ - const char *argv[], enum roffd type +#define ROFF_ARGS struct roff *r, /* parse ctx */ \ + enum rofft tok, /* tok of macro */ \ + char **bufp, /* input buffer */ \ + size_t *szp, /* size of input buffer */ \ + int ln, /* parse line */ \ + int ppos, /* original pos in buffer */ \ + int pos, /* current pos in buffer */ \ + int *offs /* reset offset of buffer data */ -struct rofftree; +typedef enum rofferr (*roffproc)(ROFF_ARGS); -struct rofftok { - int (*cb)(ROFFCALL_ARGS); /* Callback. */ - const int *args; /* Args (or NULL). */ - const int *parents; - const int *children; - int ctx; - enum rofftype type; /* Type of macro. */ - int flags; -#define ROFF_PARSED (1 << 0) /* "Parsed". */ -#define ROFF_CALLABLE (1 << 1) /* "Callable". */ -#define ROFF_QUOTES (1 << 2) /* Quoted args. */ -#define ROFF_SHALLOW (1 << 3) /* Nesting block. */ +struct roffmac { + const char *name; /* macro name */ + roffproc proc; + roffproc text; }; -struct roffarg { - int flags; -#define ROFF_VALUE (1 << 0) /* Has a value. */ -}; +static enum rofferr roff_if(ROFF_ARGS); +static enum rofferr roff_if_text(ROFF_ARGS); +static enum rofferr roff_ig(ROFF_ARGS); +static enum rofferr roff_ig_text(ROFF_ARGS); +static enum rofferr roff_cblock(ROFF_ARGS); +static enum rofferr roff_ccond(ROFF_ARGS); -struct roffnode { - int tok; /* Token id. */ - struct roffnode *parent; /* Parent (or NULL). */ - size_t line; /* Parsed at line. */ +const struct roffmac roffs[ROFF_MAX] = { + { "if", roff_if, roff_if_text }, + { "ig", roff_ig, roff_ig_text }, + { ".", roff_cblock, NULL }, + { "\\}", roff_ccond, NULL }, }; -struct rofftree { - struct roffnode *last; /* Last parsed node. */ - time_t date; /* `Dd' results. */ - char *cur; - char os[64]; /* `Os' results. */ - char title[64]; /* `Dt' results. */ - char section[64]; /* `Dt' results. */ - char volume[64]; /* `Dt' results. */ - int state; -#define ROFF_PRELUDE (1 << 1) /* In roff prelude. */ - /* FIXME: if we had prev ptrs, this wouldn't be necessary. */ -#define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */ -#define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */ -#define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */ -#define ROFF_BODY (1 << 5) /* In roff body. */ - struct md_mbuf *mbuf; /* Output (or NULL). */ - const struct md_args *args; /* Global args. */ - const struct md_rbuf *rbuf; /* Input. */ - const struct roffcb *cb; -}; +static void roff_free1(struct roff *); +static enum rofft roff_hash_find(const char *); +static void roffnode_cleanscope(struct roff *); +static int roffnode_push(struct roff *, + enum rofft, int, int); +static void roffnode_pop(struct roff *); +static enum rofft roff_parse(const char *, int *); -static int roff_Dd(ROFFCALL_ARGS); -static int roff_Dt(ROFFCALL_ARGS); -static int roff_Os(ROFFCALL_ARGS); -static int roff_layout(ROFFCALL_ARGS); -static int roff_text(ROFFCALL_ARGS); -static int roff_comment(ROFFCALL_ARGS); -static int roff_close(ROFFCALL_ARGS); -static int roff_special(ROFFCALL_ARGS); - -static struct roffnode *roffnode_new(int, struct rofftree *); -static void roffnode_free(int, struct rofftree *); - -static void roff_warn(const struct rofftree *, - const char *, char *, ...); -static void roff_err(const struct rofftree *, - const char *, char *, ...); - -static int roffscan(int, const int *); -static int rofffindtok(const char *); -static int rofffindarg(const char *); -static int rofffindcallable(const char *); -static int roffargs(const struct rofftree *, - int, char *, char **); -static int roffargok(int, int); -static int roffnextopt(const struct rofftree *, - int, const char ***, char **); -static int roffparse(struct rofftree *, char *, size_t); -static int textparse(const struct rofftree *, - const char *, size_t); - - -static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit, - ROFF_ARGMAX }; -static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled, - ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled, - ROFF_Compact, ROFF_ARGMAX }; -static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX }; -static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX }; -static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX }; -static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash, - ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag, - ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset, - ROFF_Width, ROFF_Compact, ROFF_ARGMAX }; -static const int roffarg_St[] = { - ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96, - ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1, - ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95, - ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95, - ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1, - ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC, - ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3, - ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5, - ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0, - ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4, - ROFF_ARGMAX }; - -static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX }; -static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX }; -static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX }; -static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B, - ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P, - ROFF__R, ROFF__T, ROFF__V, ROFF_MAX }; - -static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; -static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX }; -static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX }; -static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; -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, 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 */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */ - { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */ - { 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, 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 */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */ - { 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, 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, ROFF_PARSED | ROFF_CALLABLE }, /* Li */ - { 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_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, 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, ROFF_PARSED }, /* %T */ - { 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_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */ - { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */ - { 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 */ - {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */ - { 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_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_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_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */ - { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */ - { 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_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_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_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 */ - {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 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 }, /* 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 */ - { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */ - { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Fo */ - { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */ - { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Oo */ - { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */ - { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */ - { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */ - }; - -/* Table of all known token arguments. */ -static const int tokenargs[ROFF_ARGMAX] = - { - 0, 0, 0, 0, - 0, ROFF_VALUE, ROFF_VALUE, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - }; - -const char *const toknamesp[ROFF_MAX] = - { - "\\\"", "Dd", "Dt", "Os", - "Sh", "Ss", "Pp", "D1", - "Dl", "Bd", "Ed", "Bl", - "El", "It", "Ad", "An", - "Ar", "Cd", "Cm", "Dv", - "Er", "Ev", "Ex", "Fa", - "Fd", "Fl", "Fn", "Ft", - "Ic", "In", "Li", "Nd", - "Nm", "Op", "Ot", "Pa", - "Rv", "St", "Va", "Vt", - "Xr", "\%A", "\%B", "\%D", - "\%I", "\%J", "\%N", "\%O", - "\%P", "\%R", "\%T", "\%V", - "Ac", "Ao", "Aq", "At", - "Bc", "Bf", "Bo", "Bq", - "Bsx", "Bx", "Db", "Dc", - "Do", "Dq", "Ec", "Ef", - "Em", "Eo", "Fx", "Ms", - "No", "Ns", "Nx", "Ox", - "Pc", "Pf", "Po", "Pq", - "Qc", "Ql", "Qo", "Qq", - "Re", "Rs", "Sc", "So", - "Sq", "Sm", "Sx", "Sy", - "Tn", "Ux", "Xc", "Xo", - "Fo", "Fc", "Oo", "Oc", - "Bk", "Ek", - }; - -const char *const tokargnamesp[ROFF_ARGMAX] = - { - "split", "nosplit", "ragged", - "unfilled", "literal", "file", - "offset", "bullet", "dash", - "hyphen", "item", "enum", - "tag", "diag", "hang", - "ohang", "inset", "column", - "width", "compact", "std", - "p1003.1-88", "p1003.1-90", "p1003.1-96", - "p1003.1-2001", "p1003.1-2004", "p1003.1", - "p1003.1b", "p1003.1b-93", "p1003.1c-95", - "p1003.1g-2000", "p1003.2-92", "p1387.2-95", - "p1003.2", "p1387.2", "isoC-90", - "isoC-amd1", "isoC-tcor1", "isoC-tcor2", - "isoC-99", "ansiC", "ansiC-89", - "ansiC-99", "ieee754", "iso8802-3", - "xpg3", "xpg4", "xpg4.2", - "xpg4.3", "xbd5", "xcu5", - "xsh5", "xns5", "xns5.2d2.0", - "xcurses4.2", "susv2", "susv3", - "svid4", "filled", "words", - }; - - -const char *const *toknames = toknamesp; -const char *const *tokargnames = tokargnamesp; - - -int -roff_free(struct rofftree *tree, int flush) +/* + * Look up a roff token by its name. Returns ROFF_MAX if no macro by + * the nil-terminated string name could be found. + */ +static enum rofft +roff_hash_find(const char *p) { - int error; + int i; - assert(tree->mbuf); - if ( ! flush) - tree->mbuf = NULL; + /* FIXME: make this be fast and efficient. */ - /* LINTED */ - while (tree->last) - if ( ! (*tokens[tree->last->tok].cb) - (tree->last->tok, tree, NULL, ROFF_EXIT)) - /* Disallow flushing. */ - tree->mbuf = NULL; + for (i = 0; i < (int)ROFF_MAX; i++) + if (0 == strcmp(roffs[i].name, p)) + return((enum rofft)i); - error = tree->mbuf ? 0 : 1; - - if (tree->mbuf && (ROFF_PRELUDE & tree->state)) { - /*roff_warn(tree, "prelude never finished");*/ - error = 1; - } - - free(tree); - return(error ? 0 : 1); + return(ROFF_MAX); } -struct rofftree * -roff_alloc(const struct md_args *args, struct md_mbuf *out, - const struct md_rbuf *in, const struct roffcb *cb) +/* + * Pop the current node off of the stack of roff instructions currently + * pending. + */ +static void +roffnode_pop(struct roff *r) { - struct rofftree *tree; + struct roffnode *p; - if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) - err(1, "calloc"); - - tree->state = ROFF_PRELUDE; - tree->args = args; - tree->mbuf = out; - tree->rbuf = in; - tree->cb = cb; - - return(tree); + assert(r->last); + p = r->last; + r->last = r->last->parent; + if (p->end) + free(p->end); + free(p); } -int -roff_engine(struct rofftree *tree, char *buf, size_t sz) +/* + * Push a roff node onto the instruction stack. This must later be + * removed with roffnode_pop(). + */ +static int +roffnode_push(struct roff *r, enum rofft tok, int line, int col) { + struct roffnode *p; - tree->cur = buf; - - if (0 == sz) { - roff_warn(tree, buf, "blank line"); + if (NULL == (p = calloc(1, sizeof(struct roffnode)))) { + (*r->msg)(MANDOCERR_MEM, r->data, line, col, NULL); return(0); - } else if ('.' != *buf) - return(textparse(tree, buf, sz)); + } - return(roffparse(tree, buf, sz)); -} + p->tok = tok; + p->parent = r->last; + p->line = line; + p->col = col; - -static int -textparse(const struct rofftree *tree, const char *buf, size_t sz) -{ - - /* Print text. */ + r->last = p; return(1); } -static int -roffargs(const struct rofftree *tree, - int tok, char *buf, char **argv) +static void +roff_free1(struct roff *r) { - int i; - char *p; - assert(tok >= 0 && tok < ROFF_MAX); - assert('.' == *buf); + while (r->last) + roffnode_pop(r); +} - p = buf; - /* LINTED */ - for (i = 0; *buf && i < ROFF_MAXARG; i++) { - if ('\"' == *buf) { - argv[i] = ++buf; - while (*buf && '\"' != *buf) - buf++; - if (0 == *buf) { - roff_err(tree, argv[i], "unclosed " - "quote in argument " - "list for `%s'", - toknames[tok]); - return(0); - } - } else { - argv[i] = buf++; - while (*buf && ! isspace(*buf)) - buf++; - if (0 == *buf) - continue; - } - *buf++ = 0; - while (*buf && isspace(*buf)) - buf++; - } - - assert(i > 0); - if (ROFF_MAXARG == i && *buf) { - roff_err(tree, p, "too many arguments for `%s'", toknames - [tok]); - return(0); - } +void +roff_reset(struct roff *r) +{ - argv[i] = NULL; - return(1); + roff_free1(r); } -/* XXX */ -static int -roffscan(int tok, const int *tokv) +void +roff_free(struct roff *r) { - if (NULL == tokv) - return(1); - - for ( ; ROFF_MAX != *tokv; tokv++) - if (tok == *tokv) - return(1); - - return(0); + roff_free1(r); + free(r); } -static int -roffparse(struct rofftree *tree, char *buf, size_t sz) +struct roff * +roff_alloc(const mandocmsg msg, void *data) { - int tok, t; - struct roffnode *n; - char *argv[ROFF_MAXARG]; - const char **argvp; + struct roff *r; - assert(sz > 0); - - if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { - roff_err(tree, buf + 1, "bogus line macro"); + if (NULL == (r = calloc(1, sizeof(struct roff)))) { + (*msg)(MANDOCERR_MEM, data, 0, 0, NULL); return(0); - } else if (NULL == tokens[tok].cb) { - roff_err(tree, buf + 1, "unsupported macro `%s'", - toknames[tok]); - return(0); - } else if (ROFF_COMMENT == tokens[tok].type) - return(1); - - if ( ! roffargs(tree, tok, buf, argv)) - return(0); - - argvp = (const char **)argv; - - /* - * Prelude macros break some assumptions, so branch now. - */ - - if (ROFF_PRELUDE & tree->state) { - assert(NULL == tree->last); - return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); - } else - assert(tree->last); - - assert(ROFF_BODY & tree->state); - - /* - * First check that our possible parents and parent's possible - * children are satisfied. - */ - - if ( ! roffscan(tree->last->tok, tokens[tok].parents)) { - warnx("%s: invalid parent `%s' for `%s' (line %zu)", - tree->rbuf->name, - toknames[tree->last->tok], - toknames[tok], tree->rbuf->line); - return(0); - } - - if ( ! roffscan(tok, tokens[tree->last->tok].children)) { - warnx("%s: invalid child `%s' for `%s' (line %zu)", - tree->rbuf->name, toknames[tok], - toknames[tree->last->tok], - tree->rbuf->line); - return(0); } - /* - * Branch if we're not a layout token. - */ + r->msg = msg; + r->data = data; + return(r); +} - if (ROFF_LAYOUT != tokens[tok].type) - return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); - /* - * Check our scope rules. - */ +enum rofferr +roff_parseln(struct roff *r, int ln, + char **bufp, size_t *szp, int pos, int *offs) +{ + enum rofft t; + int ppos, i, j, wtf; - if (0 == tokens[tok].ctx) - return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); - - /* - * First consider implicit-end tags, like as follows: - * .Sh SECTION 1 - * .Sh SECTION 2 - * In this, we want to close the scope of the NAME section. If - * there's an intermediary implicit-end tag, such as - * .Sh SECTION 1 - * .Ss Subsection 1 - * .Sh SECTION 2 - * then it must be closed as well. - */ - - if (tok == tokens[tok].ctx) { - /* - * First search up to the point where we must close. - * If one doesn't exist, then we can open a new scope. + if (r->last && ! ROFF_CTL((*bufp)[pos])) { + /* + * If a scope is open and we're not a macro, pass it + * through our text detector and continue as quickly as + * possible. */ + t = r->last->tok; + assert(roffs[t].text); + return((*roffs[t].text) + (r, t, bufp, szp, ln, pos, pos, offs)); + } else if ( ! ROFF_CTL((*bufp)[pos])) + /* + * Don't do anything if we're free-form text. + */ + return(ROFF_CONT); - for (n = tree->last; n; n = n->parent) { - assert(0 == tokens[n->tok].ctx || - n->tok == tokens[n->tok].ctx); - if (n->tok == tok) - break; - if (ROFF_SHALLOW & tokens[tok].flags) { - n = NULL; - break; - } - } + /* A macro-ish line with a possibly-open macro context. */ + wtf = 0; + + if (r->last && r->last->end) { /* - * Create a new scope, as no previous one exists to - * close out. + * We have a scope open that has a custom end-macro + * handler. Try to match it against the input. */ + i = pos + 1; + while (' ' == (*bufp)[i] || '\t' == (*bufp)[i]) + i++; - if (NULL == n) - return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); + for (j = 0; r->last->end[j]; j++, i++) + if ((*bufp)[i] != r->last->end[j]) + break; + if ('\0' == r->last->end[j] && + ('\0' == (*bufp)[i] || + ' ' == (*bufp)[i] || + '\t' == (*bufp)[i])) { + roffnode_pop(r); + roffnode_cleanscope(r); + wtf = 1; + } + } + + ppos = pos; + if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) { /* - * Close out all intermediary scoped blocks, then hang - * the current scope from our predecessor's parent. + * This is some of groff's stranger behaviours. If we + * encountered a custom end-scope tag and that tag also + * happens to be a "real" macro, then we need to try + * interpreting it again as a real macro. If it's not, + * then return ignore. Else continue. */ + if (wtf) + return(ROFF_IGN); + else if (NULL == r->last) + return(ROFF_CONT); - do { - t = tree->last->tok; - if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) - return(0); - } while (t != tok); - - return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); + /* FIXME: this assumes that we ignore!? */ + return(ROFF_IGN); } - /* - * Now consider explicit-end tags, where we want to close back - * to a specific tag. Example: - * .Bl - * .It Item. - * .El - * In this, the `El' tag closes out the scope of `Bl'. - */ - - assert(tree->last); - assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx); - - do { - t = tree->last->tok; - if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) - return(0); - } while (t != tokens[tok].ctx); - - assert(tree->last); - return(1); + assert(roffs[t].proc); + return((*roffs[t].proc) + (r, t, bufp, szp, ln, ppos, pos, offs)); } -static int -rofffindarg(const char *name) +int +roff_endparse(struct roff *r) { - size_t i; - /* FIXME: use a table, this is slow but ok for now. */ - - /* LINTED */ - for (i = 0; i < ROFF_ARGMAX; i++) - /* LINTED */ - if (0 == strcmp(name, tokargnames[i])) - return((int)i); - - return(ROFF_ARGMAX); + if (NULL == r->last) + return(1); + return((*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->last->line, + r->last->col, NULL)); } -static int -rofffindtok(const char *buf) +/* + * Parse a roff node's type from the input buffer. This must be in the + * form of ".foo xxx" in the usual way. + */ +static enum rofft +roff_parse(const char *buf, int *pos) { - char token[4]; - size_t i; + int j; + char mac[5]; + enum rofft t; - for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++) - token[i] = *buf; + assert(ROFF_CTL(buf[*pos])); + (*pos)++; - if (i == 3) + while (buf[*pos] && (' ' == buf[*pos] || '\t' == buf[*pos])) + (*pos)++; + + if ('\0' == buf[*pos]) return(ROFF_MAX); - token[i] = 0; + for (j = 0; j < 4; j++, (*pos)++) + if ('\0' == (mac[j] = buf[*pos])) + break; + else if (' ' == buf[*pos]) + break; - /* FIXME: use a table, this is slow but ok for now. */ + if (j == 4 || j < 1) + return(ROFF_MAX); - /* LINTED */ - for (i = 0; i < ROFF_MAX; i++) - /* LINTED */ - if (0 == strcmp(toknames[i], token)) - return((int)i); + mac[j] = '\0'; - return(ROFF_MAX); -} + if (ROFF_MAX == (t = roff_hash_find(mac))) + return(t); + while (buf[*pos] && ' ' == buf[*pos]) + (*pos)++; -static int -rofffindcallable(const char *name) -{ - int c; - - if (ROFF_MAX == (c = rofffindtok(name))) - return(ROFF_MAX); - assert(c >= 0 && c < ROFF_MAX); - return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX); + return(t); } -static struct roffnode * -roffnode_new(int tokid, struct rofftree *tree) +/* ARGSUSED */ +static enum rofferr +roff_cblock(ROFF_ARGS) { - struct roffnode *p; - - if (NULL == (p = malloc(sizeof(struct roffnode)))) - err(1, "malloc"); - p->line = tree->rbuf->line; - p->tok = tokid; - p->parent = tree->last; - tree->last = p; + if (NULL == r->last) { + if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); + } - return(p); -} + if (ROFF_ig != r->last->tok) { + if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); + } + if ((*bufp)[pos]) + if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) + return(ROFF_ERR); -static int -roffargok(int tokid, int argid) -{ - const int *c; + ROFF_MDEBUG(r, "closing ignore block"); + roffnode_pop(r); + roffnode_cleanscope(r); + return(ROFF_IGN); - if (NULL == (c = tokens[tokid].args)) - return(0); - - for ( ; ROFF_ARGMAX != *c; c++) - if (argid == *c) - return(1); - - return(0); } static void -roffnode_free(int tokid, struct rofftree *tree) +roffnode_cleanscope(struct roff *r) { - struct roffnode *p; - assert(tree->last); - assert(tree->last->tok == tokid); - - p = tree->last; - tree->last = tree->last->parent; - free(p); -} - - -static int -roffnextopt(const struct rofftree *tree, int tok, - const char ***in, char **val) -{ - const char *arg, **argv; - int v; - - *val = NULL; - argv = *in; - assert(argv); - - if (NULL == (arg = *argv)) - return(-1); - if ('-' != *arg) - return(-1); - - if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) { - roff_warn(tree, arg, "argument-like parameter `%s' to " - "`%s'", &arg[1], toknames[tok]); - return(-1); - } - - if ( ! roffargok(tok, v)) { - roff_warn(tree, arg, "invalid argument parameter `%s' to " - "`%s'", tokargnames[v], toknames[tok]); - return(-1); - } - - if ( ! (ROFF_VALUE & tokenargs[v])) - return(v); - - *in = ++argv; - - if (NULL == *argv) { - roff_err(tree, arg, "empty value of `%s' for `%s'", - tokargnames[v], toknames[tok]); - return(ROFF_ARGMAX); + while (r->last) { + if (--r->last->endspan < 0) + break; + ROFF_MDEBUG(r, "closing implicit scope"); + roffnode_pop(r); } - - return(v); } /* ARGSUSED */ -static int -roff_Dd(ROFFCALL_ARGS) +static enum rofferr +roff_ccond(ROFF_ARGS) { - if (ROFF_BODY & tree->state) { - assert( ! (ROFF_PRELUDE & tree->state)); - assert(ROFF_PRELUDE_Dd & tree->state); - return(roff_text(tok, tree, argv, type)); + if (NULL == r->last) { + if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); } - assert(ROFF_PRELUDE & tree->state); - assert( ! (ROFF_BODY & tree->state)); + if (ROFF_if != r->last->tok) { + if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); + } - if (ROFF_PRELUDE_Dd & tree->state) { - roff_err(tree, *argv, "repeated `Dd' in prelude"); - return(0); - } else if (ROFF_PRELUDE_Dt & tree->state) { - roff_err(tree, *argv, "out-of-order `Dd' in prelude"); - return(0); + if (r->last->endspan > -1) { + if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); } - /* TODO: parse date. */ + if ((*bufp)[pos]) + if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) + return(ROFF_ERR); - assert(NULL == tree->last); - tree->state |= ROFF_PRELUDE_Dd; - - return(1); + ROFF_MDEBUG(r, "closing explicit scope"); + roffnode_pop(r); + roffnode_cleanscope(r); + return(ROFF_IGN); } /* ARGSUSED */ -static int -roff_Dt(ROFFCALL_ARGS) +static enum rofferr +roff_ig(ROFF_ARGS) { + int sv; + size_t sz; - if (ROFF_BODY & tree->state) { - assert( ! (ROFF_PRELUDE & tree->state)); - assert(ROFF_PRELUDE_Dt & tree->state); - return(roff_text(tok, tree, argv, type)); - } + if ( ! roffnode_push(r, tok, ln, ppos)) + return(ROFF_ERR); - assert(ROFF_PRELUDE & tree->state); - assert( ! (ROFF_BODY & tree->state)); - - if ( ! (ROFF_PRELUDE_Dd & tree->state)) { - roff_err(tree, *argv, "out-of-order `Dt' in prelude"); - return(0); - } else if (ROFF_PRELUDE_Dt & tree->state) { - roff_err(tree, *argv, "repeated `Dt' in prelude"); - return(0); + if ('\0' == (*bufp)[pos]) { + ROFF_MDEBUG(r, "opening ignore block"); + return(ROFF_IGN); } - /* TODO: parse date. */ + sv = pos; + while ((*bufp)[pos] && ' ' != (*bufp)[pos] && + '\t' != (*bufp)[pos]) + pos++; - assert(NULL == tree->last); - tree->state |= ROFF_PRELUDE_Dt; + /* + * Note: groff does NOT like escape characters in the input. + * Instead of detecting this, we're just going to let it fly and + * to hell with it. + */ - return(1); -} + assert(pos > sv); + sz = (size_t)(pos - sv); + r->last->end = malloc(sz + 1); -/* ARGSUSED */ -static int -roff_Os(ROFFCALL_ARGS) -{ - - if (ROFF_EXIT == type) { - assert(ROFF_PRELUDE_Os & tree->state); - return(roff_layout(tok, tree, argv, type)); - } else if (ROFF_BODY & tree->state) { - assert( ! (ROFF_PRELUDE & tree->state)); - assert(ROFF_PRELUDE_Os & tree->state); - return(roff_text(tok, tree, argv, type)); + if (NULL == r->last->end) { + (*r->msg)(MANDOCERR_MEM, r->data, ln, pos, NULL); + return(ROFF_ERR); } - assert(ROFF_PRELUDE & tree->state); - if ( ! (ROFF_PRELUDE_Dt & tree->state) || - ! (ROFF_PRELUDE_Dd & tree->state)) { - roff_err(tree, *argv, "out-of-order `Os' in prelude"); - return(0); - } + memcpy(r->last->end, *bufp + sv, sz); + r->last->end[(int)sz] = '\0'; - /* TODO: extract OS. */ + ROFF_MDEBUG(r, "opening explicit ignore block"); - tree->state |= ROFF_PRELUDE_Os; - tree->state &= ~ROFF_PRELUDE; - tree->state |= ROFF_BODY; + if ((*bufp)[pos]) + if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) + return(ROFF_ERR); - assert(NULL == tree->last); - - return(roff_layout(tok, tree, argv, type)); + return(ROFF_IGN); } /* ARGSUSED */ -static int -roff_layout(ROFFCALL_ARGS) +static enum rofferr +roff_ig_text(ROFF_ARGS) { - int i, c, argcp[ROFF_MAXARG]; - char *v, *argvp[ROFF_MAXARG]; - if (ROFF_PRELUDE & tree->state) { - roff_err(tree, *argv, "`%s' disallowed in prelude", - toknames[tok]); - return(0); - } - - if (ROFF_EXIT == type) { - roffnode_free(tok, tree); - return((*tree->cb->roffblkout)(tree->args, tok)); - } - - i = 0; - argv++; - - while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { - if (ROFF_ARGMAX == c) - return(0); - - argcp[i] = c; - argvp[i] = v; - i++; - argv++; - } - - argcp[i] = ROFF_ARGMAX; - argvp[i] = NULL; - - if (NULL == roffnode_new(tok, tree)) - return(0); - - if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp)) - return(0); - - if ( ! (ROFF_PARSED & tokens[tok].flags)) { - - /* TODO: print all tokens. */ - - if ( ! ((*tree->cb->roffout)(tree->args, tok))) - return(0); - return((*tree->cb->roffblkin)(tree->args, tok)); - } - - while (*argv) { - if (ROFF_MAX != (c = rofffindcallable(*argv))) { - if (NULL == tokens[c].cb) { - roff_err(tree, *argv, "unsupported " - "macro `%s'", - toknames[c]); - return(0); - } - if ( ! (*tokens[c].cb)(c, tree, - argv, ROFF_ENTER)) - return(0); - } - - /* TODO: print token. */ - - argv++; - } - - if ( ! ((*tree->cb->roffout)(tree->args, tok))) - return(0); - - return((*tree->cb->roffblkin)(tree->args, tok)); + return(ROFF_IGN); } /* ARGSUSED */ -static int -roff_text(ROFFCALL_ARGS) +static enum rofferr +roff_if_text(ROFF_ARGS) { - int i, c, argcp[ROFF_MAXARG]; - char *v, *argvp[ROFF_MAXARG]; + char *ep, *st; - if (ROFF_PRELUDE & tree->state) { - roff_err(tree, *argv, "`%s' disallowed in prelude", - toknames[tok]); - return(0); + st = &(*bufp)[pos]; + if (NULL == (ep = strstr(st, "\\}"))) { + roffnode_cleanscope(r); + return(ROFF_IGN); } - i = 0; - argv++; - - while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { - if (ROFF_ARGMAX == c) - return(0); - - argcp[i] = c; - argvp[i] = v; - i++; - argv++; + if (ep > st && '\\' != *(ep - 1)) { + ROFF_MDEBUG(r, "closing explicit scope (in-line)"); + roffnode_pop(r); } - argcp[i] = ROFF_ARGMAX; - argvp[i] = NULL; - - if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp)) - return(0); - - if ( ! (ROFF_PARSED & tokens[tok].flags)) { - - /* TODO: print all tokens. */ - - return((*tree->cb->roffout)(tree->args, tok)); - } - - while (*argv) { - if (ROFF_MAX != (c = rofffindcallable(*argv))) { - if (NULL == tokens[c].cb) { - roff_err(tree, *argv, "unsupported " - "macro `%s'", - toknames[c]); - return(0); - } - if ( ! (*tokens[c].cb)(c, tree, - argv, ROFF_ENTER)) - return(0); - } - - /* TODO: print token. */ - - argv++; - } - - return((*tree->cb->roffout)(tree->args, tok)); + roffnode_cleanscope(r); + return(ROFF_IGN); } /* ARGSUSED */ -static int -roff_comment(ROFFCALL_ARGS) +static enum rofferr +roff_if(ROFF_ARGS) { + int sv; - return(1); -} + /* + * Read ahead past the conditional. + * FIXME: this does not work, as conditionals don't end on + * whitespace, but are parsed according to a formal grammar. + * It's good enough for now, however. + */ + while ((*bufp)[pos] && ' ' != (*bufp)[pos]) + pos++; -/* ARGSUSED */ -static int -roff_close(ROFFCALL_ARGS) -{ + sv = pos; + while (' ' == (*bufp)[pos]) + pos++; - return(1); -} + /* + * Roff is weird. If we have just white-space after the + * conditional, it's considered the BODY and we exit without + * really doing anything. Warn about this. It's probably + * wrong. + */ + if ('\0' == (*bufp)[pos] && sv != pos) { + if ( ! (*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL)) + return(ROFF_ERR); + return(ROFF_IGN); + } -/* ARGSUSED */ -static int -roff_special(ROFFCALL_ARGS) -{ + if ( ! roffnode_push(r, tok, ln, ppos)) + return(ROFF_ERR); - return((*tree->cb->roffspecial)(tok)); -} + /* Don't evaluate: just assume NO. */ + r->last->endspan = 1; -static void -roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...) -{ - va_list ap; - char buf[128]; + if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) { + ROFF_MDEBUG(r, "opening explicit scope"); + r->last->endspan = -1; + pos += 2; + } else + ROFF_MDEBUG(r, "opening implicit scope"); - va_start(ap, fmt); - (void)vsnprintf(buf, sizeof(buf), fmt, ap); - va_end(ap); + /* + * If there are no arguments on the line, the next-line scope is + * assumed. + */ - (*tree->cb->roffmsg)(tree->args, ROFF_WARN, tree->cur, pos, - tree->rbuf->name, tree->rbuf->line, buf); -} + if ('\0' == (*bufp)[pos]) + return(ROFF_IGN); + /* Otherwise re-run the roff parser after recalculating. */ -static void -roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...) -{ - va_list ap; - char buf[128]; - - va_start(ap, fmt); - (void)vsnprintf(buf, sizeof(buf), fmt, ap); - va_end(ap); - - (*tree->cb->roffmsg)(tree->args, ROFF_ERROR, tree->cur, pos, - tree->rbuf->name, tree->rbuf->line, buf); + *offs = pos; + return(ROFF_RERUN); }