[sgt/halibut] / halibut.h

#ifndef HALIBUT_HALIBUT_H
#define HALIBUT_HALIBUT_H

#include <stdio.h>
#include <wchar.h>
#include <time.h>
#include <string.h>

#ifdef __GNUC__
#define NORETURN __attribute__((__noreturn__))
#else
#define NORETURN /* nothing */
#endif

#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif

/* For suppressing unused-parameter warnings */
#define IGNORE(x) ( (x) = (x) )

#include "tree234.h"

/*
 * Structure tags
 */
typedef struct input_Tag input;
typedef struct filepos_Tag filepos;
typedef struct paragraph_Tag paragraph;
typedef struct word_Tag word;
typedef struct keywordlist_Tag keywordlist;
typedef struct keyword_Tag keyword;
typedef struct userstyle_Tag userstyle;
typedef struct numberstate_Tag numberstate;
typedef struct indexdata_Tag indexdata;
typedef struct indextag_Tag indextag;
typedef struct indexentry_Tag indexentry;
typedef struct macrostack_Tag macrostack;

/*
 * Data structure to hold a file name and index, a line and a
 * column number, for reporting errors
 */
struct filepos_Tag {
    char *filename;
    int line, col;
};

/*
 * Data structure to hold all the file names etc for input
 */
typedef struct pushback_Tag {
    int chr;
    filepos pos;
} pushback;
struct input_Tag {
    char **filenames;		       /* complete list of input files */
    int nfiles;			       /* how many in the list */
    FILE *currfp;		       /* the currently open one */
    int currindex;		       /* which one is that in the list */
    pushback *pushback;		       /* pushed-back input characters */
    int npushback, pushbacksize;
    filepos pos;
    int reportcols;		       /* report column numbers in errors */
    macrostack *stack;		       /* macro expansions in force */
};

/*
 * Data structure to hold the input form of the source, ie a linked
 * list of paragraphs
 */
struct paragraph_Tag {
    paragraph *next;
    int type;
    wchar_t *keyword;		       /* for most special paragraphs */
    word *words;		       /* list of words in paragraph */
    int aux;			       /* number, in a numbered paragraph
                                        * or subsection level
                                        */
    word *kwtext;		       /* chapter/section indication */
    word *kwtext2;		       /* numeric-only form of kwtext */
    filepos fpos;

    paragraph *parent, *child, *sibling;   /* for hierarchy navigation */

    void *private_data; 	       /* for temp use in backends */
};
enum {
    para_IM,			       /* index merge */
    para_BR,			       /* bibliography rewrite */
    para_Rule,			       /* random horizontal rule */
    para_Chapter,
    para_Appendix,
    para_UnnumberedChapter,
    para_Heading,
    para_Subsect,
    para_Normal,
    para_Biblio,		       /* causes no output unless turned ... */
    para_BiblioCited,		       /*  ... into this paragraph type */
    para_Bullet,
    para_NumberedList,
    para_DescribedThing,
    para_Description,
    para_Code,
    para_Copyright,
    para_NoCite,
    para_Title,
    para_VersionID,
    para_Config,		       /* configuration directive */
    para_LcontPush,		       /* begin continuation of list item */
    para_LcontPop,		       /* end continuation of list item */
    para_QuotePush,		       /* begin block quote */
    para_QuotePop,		       /* end block quote */
    para_NotParaType		       /* placeholder value */
};

/*
 * Data structure to hold an individual word
 */
struct word_Tag {
    word *next, *alt;
    int type;
    int aux;
    int breaks;			       /* can a line break after it? */
    wchar_t *text;
    filepos fpos;

    void *private_data; 	       /* for temp use in backends */
};
enum {
    /* ORDERING CONSTRAINT: these normal-word types ... */
    word_Normal,
    word_Emph,
    word_Code,			       /* monospaced; `quoted' in text */
    word_WeakCode,		       /* monospaced, normal in text */
    /* ... must be in the same order as these space types ... */
    word_WhiteSpace,		       /* text is NULL or ignorable */
    word_EmphSpace,		       /* WhiteSpace when emphasised */
    word_CodeSpace,		       /* WhiteSpace when code */
    word_WkCodeSpace,		       /* WhiteSpace when weak code */
    /* ... and must be in the same order as these quote types ... */
    word_Quote,			       /* text is NULL or ignorable */
    word_EmphQuote,		       /* Quote when emphasised */
    word_CodeQuote,		       /* (can't happen) */
    word_WkCodeQuote,		       /* (can't happen) */
    /* END ORDERING CONSTRAINT */
    word_internal_endattrs,
    word_UpperXref,		       /* \K */
    word_LowerXref,		       /* \k */
    word_XrefEnd,		       /* (invisible; no text) */
    word_IndexRef,		       /* (always an invisible one) */
    word_HyperLink,		       /* (invisible) */
    word_HyperEnd		       /* (also invisible; no text) */
};
/* aux values for attributed words */
enum {
    attr_Only   = 0x0000,	       /* a lone word with the attribute */
    attr_First  = 0x0001,	       /* the first of a series */
    attr_Last   = 0x0002,	       /* the last of a series */
    attr_Always	= 0x0003,	       /* any other part of a series */
    attr_mask   = 0x0003,
};
/* aux values for quote-type words */
enum {
    quote_Open  = 0x0010,
    quote_Close = 0x0020,
    quote_mask  = 0x0030,
};
#define isattr(x) ( ( (x) > word_Normal && (x) < word_WhiteSpace ) || \
                    ( (x) > word_WhiteSpace && (x) < word_internal_endattrs ) )
#define sameattr(x,y) ( (((x)-(y)) & 3) == 0 )
#define towordstyle(x) ( word_Normal + ((x) & 3) )
#define tospacestyle(x) ( word_WhiteSpace + ((x) & 3) )
#define toquotestyle(x) ( word_Quote + ((x) & 3) )
#define removeattr(x) ( word_Normal + ((x) &~ 3) )

#define attraux(x) ( (x) & attr_mask )
#define quoteaux(x) ( (x) & quote_mask )

/*
 * error.c
 */
void fatal(int code, ...) NORETURN;
void error(int code, ...);
enum {
    err_nomemory,		       /* out of memory */
    err_optnoarg,		       /* option `-%s' requires an argument */
    err_nosuchopt,		       /* unrecognised option `-%s' */
    err_noinput,		       /* no input files */
    err_cantopen,		       /* unable to open input file `%s' */
    err_nodata,			       /* no data in input files */
    err_brokencodepara,		       /* line in codepara didn't begin `\c' */
    err_kwunclosed,		       /* expected `}' after keyword */
    err_kwillegal,		       /* paragraph type expects no keyword */
    err_kwexpected,		       /* paragraph type expects a keyword */
    err_kwtoomany,		       /* paragraph type expects only 1 */
    err_bodyillegal,		       /* paragraph type expects only kws! */
    err_badparatype,		       /* invalid command at start of para */
    err_badmidcmd,		       /* invalid command in mid-para */
    err_unexbrace,		       /* unexpected brace */
    err_explbr,			       /* expected `{' after command */
    err_commenteof,		       /* EOF inside braced comment */
    err_kwexprbr,		       /* expected `}' after cross-ref */
    err_missingrbrace,		       /* unclosed braces at end of para */
    err_missingrbrace2,		       /* unclosed braces at end of file */
    err_nestedstyles,		       /* unable to nest text styles */
    err_nestedindex,		       /* unable to nest `\i' thingys */
    err_nosuchkw,		       /* unresolved cross-reference */
    err_multiBR,		       /* multiple \BRs on same keyword */
    err_nosuchidxtag,		       /* \IM on unknown index tag (warning) */
    err_cantopenw,		       /* can't open output file for write */
    err_macroexists,		       /* this macro already exists */
    err_sectjump,		       /* jump a heading level, eg \C -> \S */
    err_winhelp_ctxclash,	       /* WinHelp context ID hash clash */
    err_multikw,		       /* keyword clash in sections */
    err_misplacedlcont,		       /* \lcont not after a list item */
    err_sectmarkerinblock,	       /* section marker appeared in block */
    err_infodirentry,		       /* \cfg{info-dir-entry} missing param */
    err_whatever                       /* random error of another type */
};

/*
 * malloc.c
 */
#ifdef LOGALLOC
void *smalloc(char *file, int line, int size);
void *srealloc(char *file, int line, void *p, int size);
void sfree(char *file, int line, void *p);
#define smalloc(x) smalloc(__FILE__, __LINE__, x)
#define srealloc(x, y) srealloc(__FILE__, __LINE__, x, y)
#define sfree(x) sfree(__FILE__, __LINE__, x)
#else
void *smalloc(int size);
void *srealloc(void *p, int size);
void sfree(void *p);
#endif
void free_word_list(word *w);
void free_para_list(paragraph *p);
word *dup_word_list(word *w);
char *dupstr(char *s);

#define mknew(type) ( (type *) smalloc (sizeof (type)) )
#define mknewa(type, number) ( (type *) smalloc ((number) * sizeof (type)) )
#define resize(array, len) ( srealloc ((array), (len) * sizeof (*(array))) )
#define lenof(array) ( sizeof(array) / sizeof(*(array)) )

/*
 * ustring.c
 */
wchar_t *ustrdup(wchar_t *s);
char *ustrtoa(wchar_t *s, char *outbuf, int size);
wchar_t *ustrfroma(char *s, wchar_t *outbuf, int size);
char *utoa_dup(wchar_t *s);
wchar_t *ufroma_dup(char *s);
int ustrlen(wchar_t const *s);
wchar_t *uadv(wchar_t *s);
wchar_t *ustrcpy(wchar_t *dest, wchar_t const *source);
wchar_t utolower(wchar_t);
int uisalpha(wchar_t);
int ustrcmp(wchar_t *lhs, wchar_t *rhs);
int ustricmp(wchar_t *lhs, wchar_t *rhs);
int utoi(wchar_t *);
int utob(wchar_t *);
int uisdigit(wchar_t);
wchar_t *ustrlow(wchar_t *s);
wchar_t *ustrftime(wchar_t *fmt, struct tm *timespec);

/*
 * help.c
 */
void help(void);
void usage(void);
void showversion(void);

/*
 * licence.c
 */
void licence(void);

/*
 * version.c
 */
const char *const version;

/*
 * misc.c
 */
typedef struct stackTag *stack;
stack stk_new(void);
void stk_free(stack);
void stk_push(stack, void *);
void *stk_pop(stack);
void *stk_top(stack);

typedef struct tagRdstring rdstring;
struct tagRdstring {
    int pos, size;
    wchar_t *text;
};
typedef struct tagRdstringc rdstringc;
struct tagRdstringc {
    int pos, size;
    char *text;
};
extern const rdstring empty_rdstring;
extern const rdstringc empty_rdstringc;
void rdadd(rdstring *rs, wchar_t c);
void rdadds(rdstring *rs, wchar_t const *p);
wchar_t *rdtrim(rdstring *rs);
void rdaddc(rdstringc *rs, char c);
void rdaddsc(rdstringc *rs, char const *p);
char *rdtrimc(rdstringc *rs);

int compare_wordlists(word *a, word *b);

void mark_attr_ends(paragraph *sourceform);

typedef struct tagWrappedLine wrappedline;
struct tagWrappedLine {
    wrappedline *next;
    word *begin, *end;		       /* first & last words of line */
    int nspaces;		       /* number of whitespaces in line */
    int shortfall;		       /* how much shorter than max width */
};
wrappedline *wrap_para(word *, int, int, int (*)(word *));
void wrap_free(wrappedline *);

/*
 * input.c
 */
paragraph *read_input(input *in, indexdata *idx);

/*
 * keywords.c
 */
struct keywordlist_Tag {
    int nkeywords;
    int size;
    tree234 *keys;		       /* sorted by `key' field */
    word **looseends;		       /* non-keyword list element numbers */
    int nlooseends;
    int looseendssize;
};
struct keyword_Tag {
    wchar_t *key;		       /* the keyword itself */
    word *text;			       /* "Chapter 2", "Appendix Q"... */
    				       /* (NB: filepos are not set) */
    paragraph *para;		       /* the paragraph referenced */
};
keyword *kw_lookup(keywordlist *, wchar_t *);
keywordlist *get_keywords(paragraph *);
void free_keywords(keywordlist *);
void subst_keywords(paragraph *, keywordlist *);

/*
 * index.c
 */

/*
 * Data structure to hold both sides of the index.
 */
struct indexdata_Tag {
    tree234 *tags;		       /* holds type `indextag' */
    tree234 *entries;		       /* holds type `indexentry' */
};

/*
 * Data structure to hold an index tag (LHS of index).
 */
struct indextag_Tag {
    wchar_t *name;
    word *implicit_text;
    word **explicit_texts;
    int nexplicit, explicit_size;
    int nrefs;
    indexentry **refs;		       /* array of entries referenced by tag */
};

/*
 * Data structure to hold an index entry (RHS of index).
 */
struct indexentry_Tag {
    word *text;
    void *backend_data;		       /* private to back end */
};

indexdata *make_index(void);
void cleanup_index(indexdata *);
/* index_merge takes responsibility for freeing arg 3 iff implicit; never
 * takes responsibility for arg 2 */
void index_merge(indexdata *, int is_explicit, wchar_t *, word *);
void build_index(indexdata *);
void index_debug(indexdata *);
indextag *index_findtag(indexdata *idx, wchar_t *name);

/*
 * contents.c
 */
numberstate *number_init(void);
void number_cfg(numberstate *, paragraph *);
word *number_mktext(numberstate *, paragraph *, wchar_t *, int *, int *);
void number_free(numberstate *);

/*
 * biblio.c
 */
void gen_citations(paragraph *, keywordlist *);

/*
 * style.c
 */
struct userstyle_Tag {
};

/*
 * bk_text.c
 */
void text_backend(paragraph *, keywordlist *, indexdata *);
paragraph *text_config_filename(char *filename);

/*
 * bk_xhtml.c
 */
void xhtml_backend(paragraph *, keywordlist *, indexdata *);
paragraph *xhtml_config_filename(char *filename);

/*
 * bk_whlp.c
 */
void whlp_backend(paragraph *, keywordlist *, indexdata *);
paragraph *whlp_config_filename(char *filename);

/*
 * bk_man.c
 */
void man_backend(paragraph *, keywordlist *, indexdata *);
paragraph *man_config_filename(char *filename);

/*
 * bk_info.c
 */
void info_backend(paragraph *, keywordlist *, indexdata *);
paragraph *info_config_filename(char *filename);

#endif
Commit	Line	Data
d7482997	1	#ifndef HALIBUT_HALIBUT_H
	2	#define HALIBUT_HALIBUT_H
	3
	4	#include <stdio.h>
	5	#include <wchar.h>
	6	#include <time.h>
9c1cf191	7	#include <string.h>
d7482997	8
	9	#ifdef __GNUC__
	10	#define NORETURN __attribute__((__noreturn__))
	11	#else
	12	#define NORETURN /* nothing */
	13	#endif
	14
	15	#ifndef TRUE
	16	#define TRUE 1
	17	#endif
	18	#ifndef FALSE
	19	#define FALSE 0
	20	#endif
	21
	22	/* For suppressing unused-parameter warnings */
	23	#define IGNORE(x) ( (x) = (x) )
	24
	25	#include "tree234.h"
	26
	27	/*
	28	* Structure tags
	29	*/
	30	typedef struct input_Tag input;
	31	typedef struct filepos_Tag filepos;
	32	typedef struct paragraph_Tag paragraph;
	33	typedef struct word_Tag word;
	34	typedef struct keywordlist_Tag keywordlist;
	35	typedef struct keyword_Tag keyword;
	36	typedef struct userstyle_Tag userstyle;
	37	typedef struct numberstate_Tag numberstate;
	38	typedef struct indexdata_Tag indexdata;
	39	typedef struct indextag_Tag indextag;
	40	typedef struct indexentry_Tag indexentry;
	41	typedef struct macrostack_Tag macrostack;
	42
	43	/*
	44	* Data structure to hold a file name and index, a line and a
	45	* column number, for reporting errors
	46	*/
	47	struct filepos_Tag {
	48	char *filename;
	49	int line, col;
	50	};
	51
	52	/*
	53	* Data structure to hold all the file names etc for input
	54	*/
	55	typedef struct pushback_Tag {
	56	int chr;
	57	filepos pos;
	58	} pushback;
	59	struct input_Tag {
	60	char *filenames; / complete list of input files */
	61	int nfiles; /* how many in the list */
	62	FILE currfp; / the currently open one */
	63	int currindex; /* which one is that in the list */
	64	pushback pushback; / pushed-back input characters */
	65	int npushback, pushbacksize;
	66	filepos pos;
	67	int reportcols; /* report column numbers in errors */
	68	macrostack stack; / macro expansions in force */
	69	};
	70
	71	/*
72	* Data structure to hold the input form of the source, ie a linked
73	* list of paragraphs
74	*/
75	struct paragraph_Tag {
76	paragraph *next;
77	int type;
78	wchar_t keyword; / for most special paragraphs */
79	word words; / list of words in paragraph */
80	int aux; /* number, in a numbered paragraph
81	* or subsection level
82	*/
83	word kwtext; / chapter/section indication */
84	word kwtext2; / numeric-only form of kwtext */
85	filepos fpos;
86
87	paragraph parent, child, sibling; / for hierarchy navigation */
88
89	void private_data; / for temp use in backends */
90	};
91	enum {
92	para_IM, /* index merge */
93	para_BR, /* bibliography rewrite */
94	para_Rule, /* random horizontal rule */
95	para_Chapter,
96	para_Appendix,
97	para_UnnumberedChapter,
98	para_Heading,
99	para_Subsect,
100	para_Normal,
101	para_Biblio, /* causes no output unless turned ... */
102	para_BiblioCited, /* ... into this paragraph type */
103	para_Bullet,
104	para_NumberedList,
7136a6c7	105	para_DescribedThing,
7136a6c7	106	para_Description,
d7482997	107	para_Code,
d7482997	108	para_Copyright,
d7482997	109	para_NoCite,
	110	para_Title,
	111	para_VersionID,
	112	para_Config, /* configuration directive */
7136a6c7	113	para_LcontPush, /* begin continuation of list item */
7136a6c7	114	para_LcontPop, /* end continuation of list item */
2614b01d	115	para_QuotePush, /* begin block quote */
2614b01d	116	para_QuotePop, /* end block quote */
d7482997	117	para_NotParaType /* placeholder value */
	118	};
	119
	120	/*
	121	* Data structure to hold an individual word
	122	*/
	123	struct word_Tag {
	124	word next, alt;
	125	int type;
	126	int aux;
	127	int breaks; /* can a line break after it? */
	128	wchar_t *text;
	129	filepos fpos;
5dd44dce	130
5dd44dce	131	void private_data; / for temp use in backends */
d7482997	132	};
	133	enum {
	134	/* ORDERING CONSTRAINT: these normal-word types ... */
	135	word_Normal,
	136	word_Emph,
	137	word_Code, /* monospaced; `quoted' in text */
	138	word_WeakCode, /* monospaced, normal in text */
	139	/* ... must be in the same order as these space types ... */
	140	word_WhiteSpace, /* text is NULL or ignorable */
	141	word_EmphSpace, /* WhiteSpace when emphasised */
	142	word_CodeSpace, /* WhiteSpace when code */
	143	word_WkCodeSpace, /* WhiteSpace when weak code */
	144	/* ... and must be in the same order as these quote types ... */
	145	word_Quote, /* text is NULL or ignorable */
	146	word_EmphQuote, /* Quote when emphasised */
	147	word_CodeQuote, /* (can't happen) */
	148	word_WkCodeQuote, /* (can't happen) */
	149	/* END ORDERING CONSTRAINT */
	150	word_internal_endattrs,
	151	word_UpperXref, /* \K */
	152	word_LowerXref, /* \k */
	153	word_XrefEnd, /* (invisible; no text) */
	154	word_IndexRef, /* (always an invisible one) */
	155	word_HyperLink, /* (invisible) */
	156	word_HyperEnd /* (also invisible; no text) */
	157	};
	158	/* aux values for attributed words */
	159	enum {
	160	attr_Only = 0x0000, /* a lone word with the attribute */
	161	attr_First = 0x0001, /* the first of a series */
	162	attr_Last = 0x0002, /* the last of a series */
	163	attr_Always = 0x0003, /* any other part of a series */
	164	attr_mask = 0x0003,
	165	};
	166	/* aux values for quote-type words */
	167	enum {
	168	quote_Open = 0x0010,
	169	quote_Close = 0x0020,
	170	quote_mask = 0x0030,
	171	};
	172	#define isattr(x) ( ( (x) > word_Normal && (x) < word_WhiteSpace ) \|\| \
	173	( (x) > word_WhiteSpace && (x) < word_internal_endattrs ) )
	174	#define sameattr(x,y) ( (((x)-(y)) & 3) == 0 )
	175	#define towordstyle(x) ( word_Normal + ((x) & 3) )
	176	#define tospacestyle(x) ( word_WhiteSpace + ((x) & 3) )
	177	#define toquotestyle(x) ( word_Quote + ((x) & 3) )
	178	#define removeattr(x) ( word_Normal + ((x) &~ 3) )
	179
	180	#define attraux(x) ( (x) & attr_mask )
	181	#define quoteaux(x) ( (x) & quote_mask )
	182
	183	/*
	184	* error.c
	185	*/
	186	void fatal(int code, ...) NORETURN;
	187	void error(int code, ...);
	188	enum {
	189	err_nomemory, /* out of memory */
	190	err_optnoarg, /* option `-%s' requires an argument */
	191	err_nosuchopt, /* unrecognised option `-%s' */
	192	err_noinput, /* no input files */
	193	err_cantopen, /* unable to open input file `%s' */
	194	err_nodata, /* no data in input files */
	195	err_brokencodepara, /* line in codepara didn't begin `\c' */
196	err_kwunclosed, /* expected `}' after keyword */
197	err_kwillegal, /* paragraph type expects no keyword */
198	err_kwexpected, /* paragraph type expects a keyword */
199	err_kwtoomany, /* paragraph type expects only 1 */
200	err_bodyillegal, /* paragraph type expects only kws! */
201	err_badparatype, /* invalid command at start of para */
202	err_badmidcmd, /* invalid command in mid-para */
203	err_unexbrace, /* unexpected brace */
204	err_explbr, /* expected `{' after command */
205	err_commenteof, /* EOF inside braced comment */
206	err_kwexprbr, /* expected `}' after cross-ref */
207	err_missingrbrace, /* unclosed braces at end of para */
7136a6c7	208	err_missingrbrace2, /* unclosed braces at end of file */
d7482997	209	err_nestedstyles, /* unable to nest text styles */
	210	err_nestedindex, /* unable to nest `\i' thingys */
	211	err_nosuchkw, /* unresolved cross-reference */
	212	err_multiBR, /* multiple \BRs on same keyword */
	213	err_nosuchidxtag, /* \IM on unknown index tag (warning) */
	214	err_cantopenw, /* can't open output file for write */
	215	err_macroexists, /* this macro already exists */
	216	err_sectjump, /* jump a heading level, eg \C -> \S */
	217	err_winhelp_ctxclash, /* WinHelp context ID hash clash */
	218	err_multikw, /* keyword clash in sections */
7136a6c7	219	err_misplacedlcont, /* \lcont not after a list item */
2614b01d	220	err_sectmarkerinblock, /* section marker appeared in block */
d4c7e130	221	err_infodirentry, /* \cfg{info-dir-entry} missing param */
d7482997	222	err_whatever /* random error of another type */
	223	};
	224
	225	/*
	226	* malloc.c
	227	*/
	228	#ifdef LOGALLOC
	229	void smalloc(char file, int line, int size);
	230	void srealloc(char file, int line, void *p, int size);
	231	void sfree(char file, int line, void p);
	232	#define smalloc(x) smalloc(__FILE__, __LINE__, x)
	233	#define srealloc(x, y) srealloc(__FILE__, __LINE__, x, y)
	234	#define sfree(x) sfree(__FILE__, __LINE__, x)
	235	#else
	236	void *smalloc(int size);
	237	void srealloc(void p, int size);
	238	void sfree(void *p);
	239	#endif
	240	void free_word_list(word *w);
	241	void free_para_list(paragraph *p);
	242	word dup_word_list(word w);
	243	char dupstr(char s);
	244
	245	#define mknew(type) ( (type *) smalloc (sizeof (type)) )
	246	#define mknewa(type, number) ( (type ) smalloc ((number) sizeof (type)) )
	247	#define resize(array, len) ( srealloc ((array), (len) * sizeof (*(array))) )
	248	#define lenof(array) ( sizeof(array) / sizeof(*(array)) )
	249
	250	/*
	251	* ustring.c
	252	*/
	253	wchar_t ustrdup(wchar_t s);
	254	char ustrtoa(wchar_t s, char *outbuf, int size);
ba9c1487	255	wchar_t ustrfroma(char s, wchar_t *outbuf, int size);
50d6b4bd	256	char utoa_dup(wchar_t s);
ba9c1487	257	wchar_t ufroma_dup(char s);
5dd44dce	258	int ustrlen(wchar_t const *s);
d7482997	259	wchar_t uadv(wchar_t s);
5dd44dce	260	wchar_t ustrcpy(wchar_t dest, wchar_t const *source);
d7482997	261	wchar_t utolower(wchar_t);
831da32e	262	int uisalpha(wchar_t);
d7482997	263	int ustrcmp(wchar_t lhs, wchar_t rhs);
	264	int ustricmp(wchar_t lhs, wchar_t rhs);
	265	int utoi(wchar_t *);
	266	int utob(wchar_t *);
	267	int uisdigit(wchar_t);
	268	wchar_t ustrlow(wchar_t s);
	269	wchar_t ustrftime(wchar_t fmt, struct tm *timespec);
	270
	271	/*
	272	* help.c
	273	*/
	274	void help(void);
	275	void usage(void);
	276	void showversion(void);
	277
	278	/*
	279	* licence.c
	280	*/
	281	void licence(void);
	282
	283	/*
	284	* version.c
	285	*/
	286	const char *const version;
	287
	288	/*
	289	* misc.c
	290	*/
	291	typedef struct stackTag *stack;
	292	stack stk_new(void);
	293	void stk_free(stack);
	294	void stk_push(stack, void *);
	295	void *stk_pop(stack);
7136a6c7	296	void *stk_top(stack);
d7482997	297
	298	typedef struct tagRdstring rdstring;
	299	struct tagRdstring {
	300	int pos, size;
	301	wchar_t *text;
	302	};
	303	typedef struct tagRdstringc rdstringc;
	304	struct tagRdstringc {
	305	int pos, size;
	306	char *text;
	307	};
	308	extern const rdstring empty_rdstring;
	309	extern const rdstringc empty_rdstringc;
	310	void rdadd(rdstring *rs, wchar_t c);
5dd44dce	311	void rdadds(rdstring rs, wchar_t const p);
d7482997	312	wchar_t rdtrim(rdstring rs);
d7482997	313	void rdaddc(rdstringc *rs, char c);
5dd44dce	314	void rdaddsc(rdstringc rs, char const p);
d7482997	315	char rdtrimc(rdstringc rs);
	316
	317	int compare_wordlists(word a, word b);
	318
	319	void mark_attr_ends(paragraph *sourceform);
	320
	321	typedef struct tagWrappedLine wrappedline;
	322	struct tagWrappedLine {
	323	wrappedline *next;
	324	word begin, end; /* first & last words of line */
	325	int nspaces; /* number of whitespaces in line */
	326	int shortfall; /* how much shorter than max width */
	327	};
	328	wrappedline wrap_para(word , int, int, int ()(word ));
	329	void wrap_free(wrappedline *);
	330
	331	/*
	332	* input.c
	333	*/
	334	paragraph read_input(input in, indexdata *idx);
	335
	336	/*
	337	* keywords.c
	338	*/
	339	struct keywordlist_Tag {
	340	int nkeywords;
	341	int size;
	342	tree234 keys; / sorted by `key' field */
	343	word *looseends; / non-keyword list element numbers */
	344	int nlooseends;
	345	int looseendssize;
	346	};
	347	struct keyword_Tag {
	348	wchar_t key; / the keyword itself */
	349	word text; / "Chapter 2", "Appendix Q"... */
	350	/* (NB: filepos are not set) */
	351	paragraph para; / the paragraph referenced */
	352	};
	353	keyword kw_lookup(keywordlist , wchar_t *);
	354	keywordlist get_keywords(paragraph );
	355	void free_keywords(keywordlist *);
	356	void subst_keywords(paragraph , keywordlist );
	357
	358	/*
	359	* index.c
	360	*/
	361
	362	/*
	363	* Data structure to hold both sides of the index.
	364	*/
	365	struct indexdata_Tag {
	366	tree234 tags; / holds type `indextag' */
	367	tree234 entries; / holds type `indexentry' */
	368	};
	369
	370	/*
	371	* Data structure to hold an index tag (LHS of index).
	372	*/
	373	struct indextag_Tag {
	374	wchar_t *name;
	375	word *implicit_text;
	376	word **explicit_texts;
	377	int nexplicit, explicit_size;
	378	int nrefs;
379	indexentry *refs; / array of entries referenced by tag */
380	};
381
382	/*
383	* Data structure to hold an index entry (RHS of index).
384	*/
385	struct indexentry_Tag {
386	word *text;
387	void backend_data; / private to back end */
388	};
389
390	indexdata *make_index(void);
391	void cleanup_index(indexdata *);
392	/* index_merge takes responsibility for freeing arg 3 iff implicit; never
393	* takes responsibility for arg 2 */
394	void index_merge(indexdata , int is_explicit, wchar_t , word *);
395	void build_index(indexdata *);
396	void index_debug(indexdata *);
397	indextag index_findtag(indexdata idx, wchar_t *name);
398
399	/*
400	* contents.c
401	*/
402	numberstate *number_init(void);
403	void number_cfg(numberstate , paragraph );
96f3af16	404	word number_mktext(numberstate , paragraph , wchar_t , int , int );
d7482997	405	void number_free(numberstate *);
	406
	407	/*
	408	* biblio.c
	409	*/
	410	void gen_citations(paragraph , keywordlist );
	411
	412	/*
	413	* style.c
	414	*/
	415	struct userstyle_Tag {
	416	};
	417
	418	/*
	419	* bk_text.c
	420	*/
	421	void text_backend(paragraph , keywordlist , indexdata *);
ba9c1487	422	paragraph text_config_filename(char filename);
d7482997	423
	424	/*
	425	* bk_xhtml.c
	426	*/
	427	void xhtml_backend(paragraph , keywordlist , indexdata *);
ba9c1487	428	paragraph xhtml_config_filename(char filename);
d7482997	429
	430	/*
	431	* bk_whlp.c
	432	*/
	433	void whlp_backend(paragraph , keywordlist , indexdata *);
ba9c1487	434	paragraph whlp_config_filename(char filename);
d7482997	435
7136a6c7	436	/*
	437	* bk_man.c
	438	*/
	439	void man_backend(paragraph , keywordlist , indexdata *);
ba9c1487	440	paragraph man_config_filename(char filename);
7136a6c7	441
5dd44dce	442	/*
	443	* bk_info.c
	444	*/
	445	void info_backend(paragraph , keywordlist , indexdata *);
	446	paragraph info_config_filename(char filename);
	447
d7482997	448	#endif