-/* $Id: mandoc.h,v 1.12 2010/06/12 11:41:50 kristaps Exp $ */
+/* $Id: mandoc.h,v 1.26 2010/12/01 16:54:25 kristaps Exp $ */
/*
* Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
*
#define ASCII_NBRSP 31 /* non-breaking space */
#define ASCII_HYPH 30 /* breakable hyphen */
+/*
+ * Status level. This refers to both internal status (i.e., whilst
+ * running, when warnings/errors are reported) and an indicator of a
+ * threshold of when to halt (when said internal state exceeds the
+ * threshold).
+ */
+enum mandoclevel {
+ MANDOCLEVEL_OK = 0,
+ MANDOCLEVEL_RESERVED,
+ MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
+ MANDOCLEVEL_ERROR, /* input has been thrown away */
+ MANDOCLEVEL_FATAL, /* input is borked */
+ MANDOCLEVEL_BADARG, /* bad argument in invocation */
+ MANDOCLEVEL_SYSERR, /* system error */
+ MANDOCLEVEL_MAX
+};
-__BEGIN_DECLS
-
+/*
+ * All possible things that can go wrong within a parse, be it libroff,
+ * libmdoc, or libman.
+ */
enum mandocerr {
MANDOCERR_OK,
+
+ MANDOCERR_WARNING, /* ===== start of warnings ===== */
+ MANDOCERR_SO, /* .so is fragile, better use ln(1) */
MANDOCERR_UPPERCASE, /* text should be uppercase */
MANDOCERR_SECOOO, /* sections out of conventional order */
MANDOCERR_SECREP, /* section name repeats */
MANDOCERR_PROLOGOOO, /* out of order prologue */
MANDOCERR_PROLOGREP, /* repeated prologue entry */
MANDOCERR_LISTFIRST, /* list type must come first */
- MANDOCERR_BADSTANDARD, /* bad standard */
- MANDOCERR_BADLIB, /* bad library */
+ MANDOCERR_BADTAB, /* tab in non-literal context */
MANDOCERR_BADESCAPE, /* bad escape sequence */
MANDOCERR_BADQUOTE, /* unterminated quoted string */
MANDOCERR_NOWIDTHARG, /* argument requires the width argument */
/* FIXME: merge with MANDOCERR_IGNARGV. */
MANDOCERR_WIDTHARG, /* superfluous width argument */
- MANDOCERR_IGNARGV, /* macro ignoring argv */
MANDOCERR_BADDATE, /* bad date argument */
MANDOCERR_BADWIDTH, /* bad width argument */
MANDOCERR_BADMSEC, /* unknown manual section */
MANDOCERR_SECMSEC, /* section not in conventional manual section */
MANDOCERR_EOLNSPACE, /* end of line whitespace */
- MANDOCERR_SCOPEEXIT, /* scope open on exit */
-#define MANDOCERR_WARNING MANDOCERR_SCOPEEXIT
+ MANDOCERR_SCOPENEST, /* blocks badly nested */
+ MANDOCERR_ERROR, /* ===== start of errors ===== */
MANDOCERR_NAMESECFIRST, /* NAME section must come first */
MANDOCERR_BADBOOL, /* bad Boolean value */
MANDOCERR_CHILD, /* child violates parent syntax */
MANDOCERR_BADATT, /* bad AT&T symbol */
+ MANDOCERR_BADSTANDARD, /* bad standard */
MANDOCERR_LISTREP, /* list type repeated */
MANDOCERR_DISPREP, /* display type repeated */
MANDOCERR_ARGVREP, /* argument repeated */
+ MANDOCERR_IGNARGV, /* ignoring argument */
MANDOCERR_NONAME, /* manual name not yet set */
MANDOCERR_MACROOBS, /* obsolete macro ignored */
MANDOCERR_MACROEMPTY, /* empty macro ignored */
MANDOCERR_NOTEXT, /* no text in this context */
MANDOCERR_BADCOMMENT, /* bad comment style */
MANDOCERR_MACRO, /* unknown macro will be lost */
+ MANDOCERR_REQUEST, /* NOT IMPLEMENTED: skipping request */
MANDOCERR_LINESCOPE, /* line scope broken */
- MANDOCERR_SCOPE, /* scope broken */
MANDOCERR_ARGCOUNT, /* argument count wrong */
- MANDOCERR_NOSCOPE, /* request scope close w/none open */
+ MANDOCERR_NOSCOPE, /* no such block is open */
MANDOCERR_SCOPEREP, /* scope already open */
+ MANDOCERR_SCOPEEXIT, /* scope open on exit */
/* FIXME: merge following with MANDOCERR_ARGCOUNT */
MANDOCERR_NOARGS, /* macro requires line argument(s) */
MANDOCERR_NOBODY, /* macro requires body argument(s) */
MANDOCERR_NOTITLE, /* no title in document */
MANDOCERR_LISTTYPE, /* missing list type */
MANDOCERR_DISPTYPE, /* missing display type */
+ MANDOCERR_FONTTYPE, /* missing font type */
MANDOCERR_ARGSLOST, /* line argument(s) will be lost */
MANDOCERR_BODYLOST, /* body argument(s) will be lost */
-#define MANDOCERR_ERROR MANDOCERR_BODYLOST
+ MANDOCERR_IGNPAR, /* paragraph macro ignored */
+ MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
MANDOCERR_COLUMNS, /* column syntax is inconsistent */
/* FIXME: this should be a MANDOCERR_ERROR */
- MANDOCERR_FONTTYPE, /* missing font type */
- /* FIXME: this should be a MANDOCERR_ERROR */
MANDOCERR_NESTEDDISP, /* displays may not be nested */
MANDOCERR_BADDISP, /* unsupported display type */
- MANDOCERR_SYNTNOSCOPE, /* request scope close w/none open */
- MANDOCERR_SYNTSCOPE, /* scope broken, syntax violated */
+ MANDOCERR_SCOPEFATAL, /* blocks badly nested */
+ MANDOCERR_SYNTNOSCOPE, /* no scope to rewind: syntax violated */
MANDOCERR_SYNTLINESCOPE, /* line scope broken, syntax violated */
MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */
MANDOCERR_SYNTCHILD, /* child violates parent syntax */
MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */
+ MANDOCERR_SOPATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
MANDOCERR_NODOCBODY, /* no document body */
MANDOCERR_NODOCPROLOG, /* no document prologue */
- MANDOCERR_UTSNAME, /* utsname() system call failed */
- MANDOCERR_MEM, /* memory exhausted */
-#define MANDOCERR_FATAL MANDOCERR_MEM
-
+ MANDOCERR_UTSNAME, /* utsname system call failed */
+ MANDOCERR_MEM, /* static buffer exhausted */
MANDOCERR_MAX
};
-typedef int (*mandocmsg)(enum mandocerr,
- void *, int, int, const char *);
+/*
+ * Available registers (set in libroff, accessed elsewhere).
+ */
+enum regs {
+ REG_nS = 0,
+ REG__MAX
+};
+
+/*
+ * A register (struct reg) can consist of many types: this consists of
+ * normalised types from the original string form.
+ */
+union regval {
+ unsigned u; /* unsigned integer */
+};
+
+/*
+ * A single register entity. If "set" is zero, the value of the
+ * register should be the default one, which is per-register. It's
+ * assumed that callers know which type in "v" corresponds to which
+ * register value.
+ */
+struct reg {
+ int set; /* whether set or not */
+ union regval v; /* parsed data */
+};
+
+/*
+ * The primary interface to setting register values is in libroff,
+ * although libmdoc and libman from time to time will manipulate
+ * registers (such as `.Sh SYNOPSIS' enabling REG_nS).
+ */
+struct regset {
+ struct reg regs[REG__MAX];
+};
+
+__BEGIN_DECLS
+
+/*
+ * Callback function for warnings, errors, and fatal errors as they
+ * occur in the compilers libroff, libmdoc, and libman.
+ */
+typedef int (*mandocmsg)(enum mandocerr, void *,
+ int, int, const char *);
__END_DECLS
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