version 1.9, 2009/01/08 14:55:59 |
version 1.37, 2009/03/05 13:12:12 |
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#include "private.h" |
#include "private.h" |
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/* |
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* Routines to parse arguments of macros. Arguments follow the syntax |
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* of `-arg [val [valN...]]'. Arguments come in all types: quoted |
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* arguments, multiple arguments per value, no-value arguments, etc. |
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*/ |
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static int lookup(int, const char *); |
#define ARGS_QUOTED (1 << 0) |
static int parse(struct mdoc *, int, int, |
#define ARGS_DELIM (1 << 1) |
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#define ARGS_TABSEP (1 << 2) |
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#define ARGV_NONE (1 << 0) |
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#define ARGV_SINGLE (1 << 1) |
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#define ARGV_MULTI (1 << 2) |
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#define ARGV_OPT_SINGLE (1 << 3) |
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static int argv_a2arg(int, const char *); |
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static int args(struct mdoc *, int, int *, |
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char *, int, char **); |
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static int argv(struct mdoc *, int, int, |
struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int postparse(struct mdoc *, int, |
static int argv_single(struct mdoc *, int, |
const struct mdoc_arg *, int); |
struct mdoc_arg *, int *, char *); |
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static int argv_opt_single(struct mdoc *, int, |
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struct mdoc_arg *, int *, char *); |
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static int argv_multi(struct mdoc *, int, |
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struct mdoc_arg *, int *, char *); |
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static int pwarn(struct mdoc *, int, int, int); |
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static int perr(struct mdoc *, int, int, int); |
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/* Warning messages. */ |
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#define WQUOTPARM (0) |
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#define WARGVPARM (1) |
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#define WCOLEMPTY (2) |
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#define WTAILWS (3) |
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/* Error messages. */ |
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#define EQUOTTERM (0) |
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#define EARGVAL (1) |
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#define EARGMANY (2) |
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/* Per-argument flags. */ |
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static int mdoc_argvflags[MDOC_ARG_MAX] = { |
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ARGV_NONE, /* MDOC_Split */ |
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ARGV_NONE, /* MDOC_Nosplit */ |
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ARGV_NONE, /* MDOC_Ragged */ |
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ARGV_NONE, /* MDOC_Unfilled */ |
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ARGV_NONE, /* MDOC_Literal */ |
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ARGV_NONE, /* MDOC_File */ |
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ARGV_SINGLE, /* MDOC_Offset */ |
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ARGV_NONE, /* MDOC_Bullet */ |
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ARGV_NONE, /* MDOC_Dash */ |
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ARGV_NONE, /* MDOC_Hyphen */ |
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ARGV_NONE, /* MDOC_Item */ |
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ARGV_NONE, /* MDOC_Enum */ |
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ARGV_NONE, /* MDOC_Tag */ |
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ARGV_NONE, /* MDOC_Diag */ |
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ARGV_NONE, /* MDOC_Hang */ |
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ARGV_NONE, /* MDOC_Ohang */ |
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ARGV_NONE, /* MDOC_Inset */ |
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ARGV_MULTI, /* MDOC_Column */ |
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ARGV_SINGLE, /* MDOC_Width */ |
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ARGV_NONE, /* MDOC_Compact */ |
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ARGV_SINGLE, /* MDOC_Std */ |
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ARGV_NONE, /* MDOC_p1003_1_88 */ |
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ARGV_NONE, /* MDOC_p1003_1_90 */ |
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ARGV_NONE, /* MDOC_p1003_1_96 */ |
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ARGV_NONE, /* MDOC_p1003_1_2001 */ |
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ARGV_NONE, /* MDOC_p1003_1_2004 */ |
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ARGV_NONE, /* MDOC_p1003_1 */ |
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ARGV_NONE, /* MDOC_p1003_1b */ |
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ARGV_NONE, /* MDOC_p1003_1b_93 */ |
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ARGV_NONE, /* MDOC_p1003_1c_95 */ |
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ARGV_NONE, /* MDOC_p1003_1g_2000 */ |
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ARGV_NONE, /* MDOC_p1003_2_92 */ |
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ARGV_NONE, /* MDOC_p1387_2_95 */ |
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ARGV_NONE, /* MDOC_p1003_2 */ |
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ARGV_NONE, /* MDOC_p1387_2 */ |
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ARGV_NONE, /* MDOC_isoC_90 */ |
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ARGV_NONE, /* MDOC_isoC_amd1 */ |
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ARGV_NONE, /* MDOC_isoC_tcor1 */ |
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ARGV_NONE, /* MDOC_isoC_tcor2 */ |
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ARGV_NONE, /* MDOC_isoC_99 */ |
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ARGV_NONE, /* MDOC_ansiC */ |
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ARGV_NONE, /* MDOC_ansiC_89 */ |
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ARGV_NONE, /* MDOC_ansiC_99 */ |
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ARGV_NONE, /* MDOC_ieee754 */ |
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ARGV_NONE, /* MDOC_iso8802_3 */ |
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ARGV_NONE, /* MDOC_xpg3 */ |
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ARGV_NONE, /* MDOC_xpg4 */ |
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ARGV_NONE, /* MDOC_xpg4_2 */ |
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ARGV_NONE, /* MDOC_xpg4_3 */ |
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ARGV_NONE, /* MDOC_xbd5 */ |
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ARGV_NONE, /* MDOC_xcu5 */ |
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ARGV_NONE, /* MDOC_xsh5 */ |
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ARGV_NONE, /* MDOC_xns5 */ |
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ARGV_NONE, /* MDOC_xns5_2d2_0 */ |
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ARGV_NONE, /* MDOC_xcurses4_2 */ |
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ARGV_NONE, /* MDOC_susv2 */ |
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ARGV_NONE, /* MDOC_susv3 */ |
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ARGV_NONE, /* MDOC_svid4 */ |
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ARGV_NONE, /* MDOC_Filled */ |
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ARGV_NONE, /* MDOC_Words */ |
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ARGV_NONE, /* MDOC_Emphasis */ |
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ARGV_NONE /* MDOC_Symbolic */ |
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}; |
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static int mdoc_argflags[MDOC_MAX] = { |
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0, /* \" */ |
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0, /* Dd */ |
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0, /* Dt */ |
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0, /* Os */ |
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0, /* Sh */ |
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0, /* Ss */ |
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ARGS_DELIM, /* Pp */ |
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ARGS_DELIM, /* D1 */ |
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ARGS_DELIM, /* Dl */ |
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0, /* Bd */ |
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0, /* Ed */ |
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0, /* Bl */ |
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0, /* El */ |
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0, /* It */ |
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ARGS_DELIM, /* Ad */ |
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ARGS_DELIM, /* An */ |
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ARGS_DELIM, /* Ar */ |
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ARGS_QUOTED, /* Cd */ |
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ARGS_DELIM, /* Cm */ |
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ARGS_DELIM, /* Dv */ |
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ARGS_DELIM, /* Er */ |
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ARGS_DELIM, /* Ev */ |
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0, /* Ex */ |
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ARGS_DELIM | ARGS_QUOTED, /* Fa */ |
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0, /* Fd */ |
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ARGS_DELIM, /* Fl */ |
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ARGS_DELIM | ARGS_QUOTED, /* Fn */ |
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ARGS_DELIM | ARGS_QUOTED, /* Ft */ |
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ARGS_DELIM, /* Ic */ |
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0, /* In */ |
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ARGS_DELIM, /* Li */ |
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0, /* Nd */ |
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ARGS_DELIM, /* Nm */ |
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ARGS_DELIM, /* Op */ |
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0, /* Ot */ |
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ARGS_DELIM, /* Pa */ |
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0, /* Rv */ |
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ARGS_DELIM, /* St */ |
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ARGS_DELIM, /* Va */ |
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ARGS_DELIM, /* Vt */ |
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ARGS_DELIM, /* Xr */ |
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ARGS_QUOTED, /* %A */ |
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ARGS_QUOTED, /* %B */ |
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ARGS_QUOTED, /* %D */ |
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ARGS_QUOTED, /* %I */ |
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ARGS_QUOTED, /* %J */ |
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ARGS_QUOTED, /* %N */ |
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ARGS_QUOTED, /* %O */ |
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ARGS_QUOTED, /* %P */ |
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ARGS_QUOTED, /* %R */ |
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ARGS_QUOTED, /* %T */ |
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ARGS_QUOTED, /* %V */ |
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ARGS_DELIM, /* Ac */ |
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0, /* Ao */ |
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ARGS_DELIM, /* Aq */ |
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ARGS_DELIM, /* At */ |
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ARGS_DELIM, /* Bc */ |
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0, /* Bf */ |
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0, /* Bo */ |
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ARGS_DELIM, /* Bq */ |
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ARGS_DELIM, /* Bsx */ |
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ARGS_DELIM, /* Bx */ |
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0, /* Db */ |
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ARGS_DELIM, /* Dc */ |
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0, /* Do */ |
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ARGS_DELIM, /* Dq */ |
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ARGS_DELIM, /* Ec */ |
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0, /* Ef */ |
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ARGS_DELIM, /* Em */ |
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0, /* Eo */ |
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ARGS_DELIM, /* Fx */ |
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ARGS_DELIM, /* Ms */ |
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ARGS_DELIM, /* No */ |
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ARGS_DELIM, /* Ns */ |
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ARGS_DELIM, /* Nx */ |
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ARGS_DELIM, /* Ox */ |
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ARGS_DELIM, /* Pc */ |
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ARGS_DELIM, /* Pf */ |
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0, /* Po */ |
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ARGS_DELIM, /* Pq */ |
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ARGS_DELIM, /* Qc */ |
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ARGS_DELIM, /* Ql */ |
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0, /* Qo */ |
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ARGS_DELIM, /* Qq */ |
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0, /* Re */ |
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0, /* Rs */ |
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ARGS_DELIM, /* Sc */ |
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0, /* So */ |
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ARGS_DELIM, /* Sq */ |
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0, /* Sm */ |
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ARGS_DELIM, /* Sx */ |
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ARGS_DELIM, /* Sy */ |
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ARGS_DELIM, /* Tn */ |
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ARGS_DELIM, /* Ux */ |
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ARGS_DELIM, /* Xc */ |
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0, /* Xo */ |
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0, /* Fo */ |
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0, /* Fc */ |
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0, /* Oo */ |
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ARGS_DELIM, /* Oc */ |
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0, /* Bk */ |
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0, /* Ek */ |
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0, /* Bt */ |
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0, /* Hf */ |
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0, /* Fr */ |
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0, /* Ud */ |
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}; |
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static int |
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perr(struct mdoc *mdoc, int line, int pos, int code) |
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{ |
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int c; |
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switch (code) { |
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case (EQUOTTERM): |
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c = mdoc_perr(mdoc, line, pos, |
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"unterminated quoted parameter"); |
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break; |
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case (EARGVAL): |
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c = mdoc_perr(mdoc, line, pos, |
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"argument requires a value"); |
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break; |
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case (EARGMANY): |
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c = mdoc_perr(mdoc, line, pos, |
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"too many values for argument"); |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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return(c); |
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} |
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static int |
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pwarn(struct mdoc *mdoc, int line, int pos, int code) |
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{ |
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int c; |
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switch (code) { |
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case (WQUOTPARM): |
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c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, |
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"unexpected quoted parameter"); |
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break; |
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case (WARGVPARM): |
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c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, |
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"argument-like parameter"); |
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break; |
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case (WCOLEMPTY): |
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c = mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, |
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"last list column is empty"); |
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break; |
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case (WTAILWS): |
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c = mdoc_pwarn(mdoc, line, pos, WARN_COMPAT, |
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"trailing whitespace"); |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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return(c); |
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} |
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int |
int |
mdoc_args(struct mdoc *mdoc, int line, int *pos, char *buf, int fl, char **v) |
mdoc_args(struct mdoc *mdoc, int line, |
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int *pos, char *buf, int tok, char **v) |
{ |
{ |
int i; |
int fl, c, i; |
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struct mdoc_node *n; |
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fl = (0 == tok) ? 0 : mdoc_argflags[tok]; |
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/* |
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* Override per-macro argument flags with context-specific ones. |
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* As of now, this is only valid for `It' depending on its list |
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* context. |
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*/ |
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switch (tok) { |
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case (MDOC_It): |
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for (n = mdoc->last; n; n = n->parent) |
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if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok) |
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break; |
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assert(n); |
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c = (int)n->data.block.argc; |
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assert(c > 0); |
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/* |
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* Using `Bl -column' adds ARGS_TABSEP to the arguments |
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* and invalidates ARGS_DELIM. Using `Bl -diag' allows |
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* for quoted arguments. |
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*/ |
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/* LINTED */ |
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for (i = 0; i < c; i++) { |
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switch (n->data.block.argv[i].arg) { |
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case (MDOC_Column): |
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fl |= ARGS_TABSEP; |
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fl &= ~ARGS_DELIM; |
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i = c; |
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break; |
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case (MDOC_Diag): |
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fl |= ARGS_QUOTED; |
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i = c; |
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break; |
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default: |
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break; |
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} |
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} |
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default: |
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break; |
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} |
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/* Continue parsing the arguments themselves... */ |
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return(args(mdoc, line, pos, buf, fl, v)); |
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} |
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static int |
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args(struct mdoc *mdoc, int line, |
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int *pos, char *buf, int fl, char **v) |
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{ |
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int i; |
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char *p, *pp; |
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assert(*pos > 0); |
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if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
return(ARGS_EOLN); |
return(ARGS_EOLN); |
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if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED)) |
if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED)) |
if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_QUOTED)) |
if ( ! pwarn(mdoc, line, *pos, WQUOTPARM)) |
return(ARGS_ERROR); |
return(ARGS_ERROR); |
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if ('-' == buf[*pos]) |
if ('-' == buf[*pos]) |
if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_ARGLIKE)) |
if ( ! pwarn(mdoc, line, *pos, WARGVPARM)) |
return(ARGS_ERROR); |
return(ARGS_ERROR); |
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/* |
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* If the first character is a delimiter and we're to look for |
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* delimited strings, then pass down the buffer seeing if it |
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* follows the pattern of [[::delim::][ ]+]+. |
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*/ |
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if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) { |
if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) { |
for (i = *pos; buf[i]; ) { |
for (i = *pos; buf[i]; ) { |
if ( ! mdoc_iscdelim(buf[i])) |
if ( ! mdoc_iscdelim(buf[i])) |
break; |
break; |
i++; |
i++; |
if (0 == buf[i] || ! isspace(buf[i])) |
/* There must be at least one space... */ |
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if (0 == buf[i] || ! isspace((u_char)buf[i])) |
break; |
break; |
i++; |
i++; |
while (buf[i] && isspace(buf[i])) |
while (buf[i] && isspace((u_char)buf[i])) |
i++; |
i++; |
} |
} |
if (0 == buf[i]) { |
if (0 == buf[i]) { |
Line 66 mdoc_args(struct mdoc *mdoc, int line, int *pos, char |
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Line 401 mdoc_args(struct mdoc *mdoc, int line, int *pos, char |
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} |
} |
} |
} |
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/* |
/* First parse non-quoted strings. */ |
* Parse routine for non-quoted string. |
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*/ |
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if ('\"' != buf[*pos]) { |
if ('\"' != buf[*pos] || ! (ARGS_QUOTED & fl)) { |
*v = &buf[*pos]; |
*v = &buf[*pos]; |
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while (buf[*pos] && ! isspace(buf[*pos])) |
/* |
(*pos)++; |
* Thar be dragons here! If we're tab-separated, search |
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* ahead for either a tab or the `Ta' macro. If a tab |
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* is detected, it mustn't be escaped; if a `Ta' is |
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* detected, it must be space-buffered before and after. |
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* If either of these hold true, then prune out the |
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* extra spaces and call it an argument. |
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*/ |
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if (ARGS_TABSEP & fl) { |
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/* Scan ahead to unescaped tab. */ |
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for (p = *v; ; p++) { |
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if (NULL == (p = strchr(p, '\t'))) |
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break; |
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if (p == *v) |
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break; |
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if ('\\' != *(p - 1)) |
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break; |
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} |
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/* Scan ahead to unescaped `Ta'. */ |
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for (pp = *v; ; pp++) { |
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if (NULL == (pp = strstr(pp, "Ta"))) |
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break; |
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if (pp > *v && ' ' != *(pp - 1)) |
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continue; |
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if (' ' == *(pp + 2) || 0 == *(pp + 2)) |
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break; |
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} |
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/* Choose delimiter tab/Ta. */ |
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if (p && pp) |
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p = (p < pp ? p : pp); |
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else if ( ! p && pp) |
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p = pp; |
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/* Strip delimiter's preceding whitespace. */ |
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if (p && p > *v) { |
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pp = p - 1; |
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while (pp > *v && ' ' == *pp) |
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pp--; |
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if (pp == *v && ' ' == *pp) |
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*pp = 0; |
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else if (' ' == *pp) |
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*(pp + 1) = 0; |
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} |
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/* ...in- and proceding whitespace. */ |
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if (p && ('\t' != *p)) { |
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*p++ = 0; |
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*p++ = 0; |
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} else if (p) |
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*p++ = 0; |
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if (p) { |
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while (' ' == *p) |
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p++; |
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if (0 != *p) |
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*(p - 1) = 0; |
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*pos += (int)(p - *v); |
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} |
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if (p && 0 == *p) |
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if ( ! pwarn(mdoc, line, *pos, WCOLEMPTY)) |
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return(0); |
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if (p && 0 == *p && p > *v && ' ' == *(p - 1)) |
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if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
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return(0); |
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if (p) |
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return(ARGS_WORD); |
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/* Configure the eoln case, too. */ |
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p = strchr(*v, 0); |
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assert(p); |
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if (p > *v && ' ' == *(p - 1)) |
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if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
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return(0); |
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*pos += (int)(p - *v); |
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return(ARGS_WORD); |
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} |
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/* Do non-tabsep look-ahead here. */ |
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if ( ! (ARGS_TABSEP & fl)) |
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while (buf[*pos]) { |
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if (isspace((u_char)buf[*pos])) |
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if ('\\' != buf[*pos - 1]) |
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break; |
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(*pos)++; |
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} |
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if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
return(ARGS_WORD); |
return(ARGS_WORD); |
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buf[(*pos)++] = 0; |
buf[(*pos)++] = 0; |
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if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
return(ARGS_WORD); |
return(ARGS_WORD); |
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while (buf[*pos] && isspace(buf[*pos])) |
if ( ! (ARGS_TABSEP & fl)) |
(*pos)++; |
while (buf[*pos] && isspace((u_char)buf[*pos])) |
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(*pos)++; |
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if (buf[*pos]) |
if (buf[*pos]) |
return(ARGS_WORD); |
return(ARGS_WORD); |
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if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_WS_EOLN)) |
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
return(ARGS_ERROR); |
return(ARGS_ERROR); |
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return(ARGS_WORD); |
return(ARGS_WORD); |
Line 107 mdoc_args(struct mdoc *mdoc, int line, int *pos, char |
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Line 539 mdoc_args(struct mdoc *mdoc, int line, int *pos, char |
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(*pos)++; |
(*pos)++; |
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if (0 == buf[*pos]) { |
if (0 == buf[*pos]) { |
(void)mdoc_perr(mdoc, line, *pos, ERR_SYNTAX_UNQUOTE); |
(void)perr(mdoc, line, *pos, EQUOTTERM); |
return(ARGS_ERROR); |
return(ARGS_ERROR); |
} |
} |
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buf[(*pos)++] = 0; |
buf[(*pos)++] = 0; |
if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
return(ARGS_WORD); |
return(ARGS_QWORD); |
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while (buf[*pos] && isspace(buf[*pos])) |
while (buf[*pos] && isspace((u_char)buf[*pos])) |
(*pos)++; |
(*pos)++; |
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if (buf[*pos]) |
if (buf[*pos]) |
return(ARGS_WORD); |
return(ARGS_QWORD); |
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if ( ! mdoc_pwarn(mdoc, line, *pos, WARN_SYNTAX_WS_EOLN)) |
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
return(ARGS_ERROR); |
return(ARGS_ERROR); |
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return(ARGS_WORD); |
return(ARGS_QWORD); |
} |
} |
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static int |
static int |
lookup(int tok, const char *argv) |
argv_a2arg(int tok, const char *argv) |
{ |
{ |
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|
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/* |
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* Parse an argument identifier from its text. XXX - this |
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* should really be table-driven to clarify the code. |
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* |
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* If you add an argument to the list, make sure that you |
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* register it here with its one or more macros! |
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*/ |
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switch (tok) { |
switch (tok) { |
case (MDOC_An): |
case (MDOC_An): |
if (xstrcmp(argv, "split")) |
if (xstrcmp(argv, "split")) |
Line 145 lookup(int tok, const char *argv) |
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Line 585 lookup(int tok, const char *argv) |
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return(MDOC_Ragged); |
return(MDOC_Ragged); |
else if (xstrcmp(argv, "unfilled")) |
else if (xstrcmp(argv, "unfilled")) |
return(MDOC_Unfilled); |
return(MDOC_Unfilled); |
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else if (xstrcmp(argv, "filled")) |
|
return(MDOC_Filled); |
else if (xstrcmp(argv, "literal")) |
else if (xstrcmp(argv, "literal")) |
return(MDOC_Literal); |
return(MDOC_Literal); |
else if (xstrcmp(argv, "file")) |
else if (xstrcmp(argv, "file")) |
Line 291 lookup(int tok, const char *argv) |
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Line 733 lookup(int tok, const char *argv) |
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static int |
static int |
postparse(struct mdoc *mdoc, int line, const struct mdoc_arg *v, int pos) |
argv_multi(struct mdoc *mdoc, int line, |
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struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
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int c, ppos; |
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char *p; |
|
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switch (v->arg) { |
v->sz = 0; |
case (MDOC_Offset): |
v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *)); |
assert(v->value); |
|
assert(v->value[0]); |
ppos = *pos; |
if (xstrcmp(v->value[0], "left")) |
|
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for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) { |
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if ('-' == buf[*pos]) |
break; |
break; |
if (xstrcmp(v->value[0], "right")) |
c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
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if (ARGS_ERROR == c) { |
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free(v->value); |
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return(0); |
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} else if (ARGS_EOLN == c) |
break; |
break; |
if (xstrcmp(v->value[0], "center")) |
v->value[(int)v->sz] = p; |
break; |
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if (xstrcmp(v->value[0], "indent")) |
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break; |
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if (xstrcmp(v->value[0], "indent-two")) |
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break; |
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return(mdoc_perr(mdoc, line, pos, ERR_SYNTAX_ARGBAD)); |
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default: |
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break; |
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} |
} |
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|
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if (0 < v->sz && v->sz < MDOC_LINEARG_MAX) |
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return(1); |
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|
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free(v->value); |
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if (0 == v->sz) |
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return(perr(mdoc, line, ppos, EARGVAL)); |
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return(perr(mdoc, line, ppos, EARGMANY)); |
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} |
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static int |
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argv_opt_single(struct mdoc *mdoc, int line, |
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struct mdoc_arg *v, int *pos, char *buf) |
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{ |
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int c, ppos; |
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char *p; |
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ppos = *pos; |
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if ('-' == buf[*pos]) |
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return(1); |
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c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
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if (ARGS_ERROR == c) |
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return(0); |
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if (ARGS_EOLN == c) |
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return(1); |
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v->sz = 1; |
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v->value = xcalloc(1, sizeof(char *)); |
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v->value[0] = p; |
return(1); |
return(1); |
} |
} |
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|
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/* |
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* Parse a single, mandatory value from the stream. |
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*/ |
static int |
static int |
parse(struct mdoc *mdoc, int line, int tok, |
argv_single(struct mdoc *mdoc, int line, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
|
int c, ppos; |
char *p; |
char *p; |
int c, ppos, i; |
|
|
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ppos = *pos; |
ppos = *pos; |
|
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switch (v->arg) { |
c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
case(MDOC_Std): |
if (ARGS_ERROR == c) |
/* FALLTHROUGH */ |
return(0); |
case(MDOC_Width): |
if (ARGS_EOLN == c) |
/* FALLTHROUGH */ |
return(perr(mdoc, line, ppos, EARGVAL)); |
case(MDOC_Offset): |
|
/* |
|
* This has a single value for an argument. |
|
*/ |
|
c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
else if (ARGS_EOLN != c) { |
|
v->sz = 1; |
|
v->value = xcalloc(1, sizeof(char *)); |
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v->value[0] = p; |
|
break; |
|
} |
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return(mdoc_perr(mdoc, line, ppos, ERR_SYNTAX_ARGVAL)); |
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case(MDOC_Column): |
v->sz = 1; |
/* |
v->value = xcalloc(1, sizeof(char *)); |
* This has several value for a single argument. We |
v->value[0] = p; |
* pre-allocate a pointer array and don't let it exceed |
return(1); |
* this size. |
} |
*/ |
|
v->sz = 0; |
|
v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *)); |
|
for (i = 0; i < MDOC_LINEARG_MAX; i++) { |
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c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
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if (ARGS_ERROR == c) { |
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free(v->value); |
|
return(0); |
|
} else if (ARGS_EOLN == c) |
|
break; |
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v->value[i] = p; |
|
} |
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if (0 == i) { |
|
free(v->value); |
|
return(mdoc_perr(mdoc, line, ppos, |
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ERR_SYNTAX_ARGVAL)); |
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} else if (MDOC_LINEARG_MAX == i) |
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return(mdoc_perr(mdoc, line, ppos, |
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ERR_SYNTAX_ARGMANY)); |
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|
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v->sz = i; |
|
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/* |
|
* Determine rules for parsing arguments. Arguments can either accept |
|
* no parameters, an optional single parameter, one parameter, or |
|
* multiple parameters. |
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*/ |
|
static int |
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argv(struct mdoc *mdoc, int tok, int line, |
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struct mdoc_arg *v, int *pos, char *buf) |
|
{ |
|
int fl; |
|
|
|
v->sz = 0; |
|
v->value = NULL; |
|
fl = mdoc_argvflags[v->arg]; |
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|
|
/* |
|
* Override the default per-argument value. |
|
*/ |
|
|
|
switch (tok) { |
|
case (MDOC_Ex): |
|
fl = ARGV_OPT_SINGLE; |
break; |
break; |
|
default: |
|
break; |
|
} |
|
|
|
switch (fl) { |
|
case (ARGV_SINGLE): |
|
return(argv_single(mdoc, line, v, pos, buf)); |
|
case (ARGV_MULTI): |
|
return(argv_multi(mdoc, line, v, pos, buf)); |
|
case (ARGV_OPT_SINGLE): |
|
return(argv_opt_single(mdoc, line, v, pos, buf)); |
default: |
default: |
v->sz = 0; |
/* ARGV_NONE */ |
v->value = NULL; |
|
break; |
break; |
} |
} |
|
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Line 384 parse(struct mdoc *mdoc, int line, int tok, |
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Line 860 parse(struct mdoc *mdoc, int line, int tok, |
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} |
} |
|
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|
|
|
/* |
|
* Parse an argument from line text. This comes in the form of -key |
|
* [value0...], which may either have a single mandatory value, at least |
|
* one mandatory value, an optional single value, or no value. |
|
*/ |
int |
int |
mdoc_argv(struct mdoc *mdoc, int line, int tok, |
mdoc_argv(struct mdoc *mdoc, int line, int tok, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
int i, ppos; |
int i; |
char *argv; |
char *p; |
|
|
(void)memset(v, 0, sizeof(struct mdoc_arg)); |
(void)memset(v, 0, sizeof(struct mdoc_arg)); |
|
|
if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
return(ARGV_EOLN); |
return(ARGV_EOLN); |
|
|
assert( ! isspace(buf[*pos])); |
assert( ! isspace((u_char)buf[*pos])); |
|
|
if ('-' != buf[*pos]) |
if ('-' != buf[*pos]) |
return(ARGV_WORD); |
return(ARGV_WORD); |
|
|
i = *pos; |
i = *pos; |
argv = &buf[++(*pos)]; |
p = &buf[++(*pos)]; |
|
|
while (buf[*pos] && ! isspace(buf[*pos])) |
v->line = line; |
|
v->pos = *pos; |
|
|
|
assert(*pos > 0); |
|
|
|
/* LINTED */ |
|
while (buf[*pos]) { |
|
if (isspace((u_char)buf[*pos])) |
|
if ('\\' != buf[*pos - 1]) |
|
break; |
(*pos)++; |
(*pos)++; |
|
} |
|
|
if (buf[*pos]) |
if (buf[*pos]) |
buf[(*pos)++] = 0; |
buf[(*pos)++] = 0; |
|
|
if (MDOC_ARG_MAX == (v->arg = lookup(tok, argv))) { |
/* |
(void)mdoc_perr(mdoc, line, i, ERR_SYNTAX_ARG); |
* We now parse out the per-macro arguments. XXX - this can be |
return(ARGV_ERROR); |
* made much cleaner using per-argument tables. See argv_a2arg |
|
* for details. |
|
*/ |
|
|
|
if (MDOC_ARG_MAX == (v->arg = argv_a2arg(tok, p))) { |
|
if ( ! pwarn(mdoc, line, i, WARGVPARM)) |
|
return(ARGV_ERROR); |
|
return(ARGV_WORD); |
} |
} |
|
|
while (buf[*pos] && isspace(buf[*pos])) |
while (buf[*pos] && isspace((u_char)buf[*pos])) |
(*pos)++; |
(*pos)++; |
|
|
/* FIXME: whitespace if no value. */ |
/* FIXME: whitespace if no value. */ |
|
|
ppos = *pos; |
if ( ! argv(mdoc, tok, line, v, pos, buf)) |
if ( ! parse(mdoc, line, tok, v, pos, buf)) |
|
return(ARGV_ERROR); |
|
if ( ! postparse(mdoc, line, v, ppos)) |
|
return(ARGV_ERROR); |
return(ARGV_ERROR); |
|
|
return(ARGV_ARG); |
return(ARGV_ARG); |