diff options
Diffstat (limited to 'mdocterm.c')
-rw-r--r-- | mdocterm.c | 168 |
1 files changed, 153 insertions, 15 deletions
@@ -31,6 +31,32 @@ #include "mmain.h" #include "term.h" +#define TERMSYM_RBRACK "]" +#define TERMSYM_LBRACK "[" +#define TERMSYM_LARROW "<-" +#define TERMSYM_RARROW "->" +#define TERMSYM_UARROW "^" +#define TERMSYM_LSQUOTE "`" +#define TERMSYM_RSQUOTE "\'" +#define TERMSYM_SQUOTE "\'" +#define TERMSYM_LDQUOTE "``" +#define TERMSYM_RDQUOTE "\'\'" +#define TERMSYM_DQUOTE "\"" +#define TERMSYM_LT "<" +#define TERMSYM_GT ">" +#define TERMSYM_LE "<=" +#define TERMSYM_GE ">=" +#define TERMSYM_EQ "==" +#define TERMSYM_NEQ "!=" +#define TERMSYM_ACUTE "\'" +#define TERMSYM_GRAVE "`" +#define TERMSYM_PI "pi" +#define TERMSYM_PLUSMINUS "+=" +#define TERMSYM_INFINITY "infinity" +#define TERMSYM_NAN "NaN" +#define TERMSYM_BAR "|" +#define TERMSYM_BULLET "o" + #ifdef __NetBSD__ #define xisspace(x) isspace((int)(x)) #else @@ -133,7 +159,6 @@ flushln(struct termp *p) * If we're literal, print out verbatim. */ if (p->flags & TERMP_LITERAL) { - /* FIXME: count non-printing chars. */ for (i = 0; i < p->col; i++) putchar(p->buf[i]); putchar('\n'); @@ -168,8 +193,9 @@ flushln(struct termp *p) * the line with TERMP_NOBREAK). */ + /* FIXME: allow selective right-margin breaking. */ + if (vis && vis + vsz > maxvis) { - /* FIXME */ if (p->flags & TERMP_NOBREAK) errx(1, "word breaks right margin"); putchar('\n'); @@ -177,7 +203,6 @@ flushln(struct termp *p) putchar(' '); vis = 0; } else if (vis + vsz > maxvis) - /* FIXME */ errx(1, "word breaks right margin"); /* @@ -258,9 +283,16 @@ static void chara(struct termp *p, char c) { - /* TODO: dynamically expand the buffer. */ - if (p->col + 1 >= p->maxcols) - errx(1, "line overrun"); + /* + * Insert a single character into the line-buffer. If the + * buffer's space is exceeded, then allocate more space. + */ + if (p->col + 1 >= p->maxcols) { + p->buf = realloc(p->buf, p->maxcols * 2); + if (NULL == p->buf) + err(1, "malloc"); + p->maxcols *= 2; + } p->buf[(p->col)++] = c; } @@ -297,21 +329,59 @@ nescape(struct termp *p, const char *word, size_t len) { switch (len) { + case (1): + if ('q' == word[0]) + stringa(p, TERMSYM_DQUOTE); + break; case (2): if ('r' == word[0] && 'B' == word[1]) - chara(p, ']'); + stringa(p, TERMSYM_RBRACK); else if ('l' == word[0] && 'B' == word[1]) - chara(p, '['); + stringa(p, TERMSYM_LBRACK); else if ('<' == word[0] && '-' == word[1]) - stringa(p, "<-"); + stringa(p, TERMSYM_LARROW); else if ('-' == word[0] && '>' == word[1]) - stringa(p, "->"); + stringa(p, TERMSYM_RARROW); else if ('l' == word[0] && 'q' == word[1]) - chara(p, '\"'); + stringa(p, TERMSYM_DQUOTE); else if ('r' == word[0] && 'q' == word[1]) - chara(p, '\"'); + stringa(p, TERMSYM_DQUOTE); else if ('b' == word[0] && 'u' == word[1]) - chara(p, 'o'); + stringa(p, TERMSYM_BULLET); + else if ('L' == word[0] && 'e' == word[1]) + stringa(p, TERMSYM_LE); + else if ('<' == word[0] && '=' == word[1]) + stringa(p, TERMSYM_LE); + else if ('G' == word[0] && 'e' == word[1]) + stringa(p, TERMSYM_GE); + else if ('>' == word[0] && '=' == word[1]) + stringa(p, TERMSYM_GE); + else if ('R' == word[0] && 'q' == word[1]) + stringa(p, TERMSYM_RDQUOTE); + else if ('L' == word[0] && 'q' == word[1]) + stringa(p, TERMSYM_LDQUOTE); + else if ('u' == word[0] && 'a' == word[1]) + stringa(p, TERMSYM_UARROW); + else if ('a' == word[0] && 'a' == word[1]) + stringa(p, TERMSYM_ACUTE); + else if ('g' == word[0] && 'a' == word[1]) + stringa(p, TERMSYM_GRAVE); + else if ('P' == word[0] && 'i' == word[1]) + stringa(p, TERMSYM_PI); + else if ('N' == word[0] && 'e' == word[1]) + stringa(p, TERMSYM_NEQ); + else if ('L' == word[0] && 't' == word[1]) + stringa(p, TERMSYM_LT); + else if ('G' == word[0] && 't' == word[1]) + stringa(p, TERMSYM_GT); + else if ('P' == word[0] && 'm' == word[1]) + stringa(p, TERMSYM_PLUSMINUS); + else if ('I' == word[0] && 'f' == word[1]) + stringa(p, TERMSYM_INFINITY); + else if ('N' == word[0] && 'a' == word[1]) + stringa(p, TERMSYM_NAN); + else if ('B' == word[0] && 'a' == word[1]) + stringa(p, TERMSYM_BAR); break; default: break; @@ -327,6 +397,11 @@ pescape(struct termp *p, const char *word, size_t *i, size_t len) (*i)++; assert(*i < len); + /* + * Handle an escape sequence. This must manage both groff-style + * escapes and mdoc-style escapes. + */ + if ('(' == word[*i]) { /* Two-character escapes. */ (*i)++; @@ -335,6 +410,22 @@ pescape(struct termp *p, const char *word, size_t *i, size_t len) (*i)++; return; + } else if ('*' == word[*i]) { + (*i)++; + assert(*i < len); + switch (word[*i]) { + case ('('): + (*i)++; + assert(*i + 1 < len); + nescape(p, &word[*i], 2); + (*i)++; + return; + default: + break; + } + nescape(p, &word[*i], 1); + return; + } else if ('[' != word[*i]) { /* One-character escapes. */ switch (word[*i]) { @@ -371,6 +462,12 @@ pword(struct termp *p, const char *word, size_t len) /*assert(len > 0);*/ /* Can be, if literal. */ + /* + * Handle pwords, partial words, which may be either a single + * word or a phrase that cannot be broken down (such as a + * literal string). This handles word styling. + */ + if ( ! (p->flags & TERMP_NOSPACE) && ! (p->flags & TERMP_LITERAL)) chara(p, ' '); @@ -378,6 +475,11 @@ pword(struct termp *p, const char *word, size_t len) if ( ! (p->flags & TERMP_NONOSPACE)) p->flags &= ~TERMP_NOSPACE; + /* + * XXX - if literal and underlining, this will underline the + * spaces between literal words. + */ + if (p->flags & TERMP_BOLD) style(p, STYLE_BOLD); if (p->flags & TERMP_UNDERLINE) @@ -402,6 +504,13 @@ word(struct termp *p, const char *word) { size_t i, j, len; + /* + * Break apart a word into tokens. If we're a literal word, + * then don't. This doesn't handle zero-length words (there + * should be none) and makes sure that pword doesn't get spaces + * or nil words unless literal. + */ + if (p->flags & TERMP_LITERAL) { pword(p, word, strlen(word)); return; @@ -443,6 +552,12 @@ body(struct termp *p, struct termpair *ppair, int dochild; struct termpair pair; + /* + * This is the main function for printing out nodes. It's + * constituted of PRE and POST functions, which correspond to + * prefix and infix processing. + */ + /* Pre-processing. */ dochild = 1; @@ -505,6 +620,13 @@ footer(struct termp *p, const struct mdoc_meta *meta) (void)strlcpy(os, meta->os, p->rmargin); + /* + * This is /slightly/ different from regular groff output + * because we don't have page numbers. Print the following: + * + * OS MDOCDATE + */ + vspace(p); p->flags |= TERMP_NOSPACE | TERMP_NOBREAK; @@ -530,7 +652,7 @@ footer(struct termp *p, const struct mdoc_meta *meta) static void header(struct termp *p, const struct mdoc_meta *meta) { - char *buf, *title; + char *buf, *title, *bufp; const char *pp; if (NULL == (buf = malloc(p->rmargin))) @@ -569,8 +691,21 @@ header(struct termp *p, const struct mdoc_meta *meta) break; } + /* + * The header is strange. It has three components, which are + * really two with the first duplicated. It goes like this: + * + * IDENTIFIER TITLE IDENTIFIER + * + * The IDENTIFIER is NAME(SECTION), which is the command-name + * (if given, or "unknown" if not) followed by the manual page + * section. These are given in `Dt'. The TITLE is a free-form + * string depending on the manual volume. If not specified, it + * switches on the manual section. + */ + if (mdoc_arch2a(meta->arch)) - (void)snprintf(buf, p->rmargin, "%s(%s)", + (void)snprintf(buf, p->rmargin, "%s (%s)", pp, mdoc_arch2a(meta->arch)); else (void)strlcpy(buf, pp, p->rmargin); @@ -580,6 +715,9 @@ header(struct termp *p, const struct mdoc_meta *meta) (void)snprintf(title, p->rmargin, "%s(%s)", meta->title, pp ? pp : ""); + for (bufp = title; *bufp; bufp++) + *bufp = toupper(*bufp); + p->offset = 0; p->rmargin = (p->maxrmargin - strlen(buf)) / 2; p->flags |= TERMP_NOBREAK | TERMP_NOSPACE; |