version 1.141, 2010/06/07 10:52:44 |
version 1.143, 2010/06/07 21:03:02 |
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#include "mdoc.h" |
#include "mdoc.h" |
#include "main.h" |
#include "main.h" |
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static struct termp *term_alloc(char *, enum termenc); |
#define PS_CHAR_WIDTH 6 |
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#define PS_CHAR_HEIGHT 12 |
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#define PS_CHAR_TOPMARG (792 - 24) |
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#define PS_CHAR_TOP (PS_CHAR_TOPMARG - 36) |
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#define PS_CHAR_LEFT 36 |
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#define PS_CHAR_BOTMARG 24 |
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#define PS_CHAR_BOT (PS_CHAR_BOTMARG + 36) |
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static struct termp *alloc(char *, enum termenc, enum termtype); |
static void term_free(struct termp *); |
static void term_free(struct termp *); |
static void spec(struct termp *, const char *, size_t); |
static void spec(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
Line 44 static void buffera(struct termp *, const char *, s |
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Line 52 static void buffera(struct termp *, const char *, s |
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static void bufferc(struct termp *, char); |
static void bufferc(struct termp *, char); |
static void adjbuf(struct termp *p, size_t); |
static void adjbuf(struct termp *p, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
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static void advance(struct termp *, size_t); |
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static void endline(struct termp *); |
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static void letter(struct termp *, char); |
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static void pageopen(struct termp *); |
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void * |
void * |
ascii_alloc(char *outopts) |
ascii_alloc(char *outopts) |
{ |
{ |
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return(term_alloc(outopts, TERMENC_ASCII)); |
return(alloc(outopts, TERMENC_ASCII, TERMTYPE_CHAR)); |
} |
} |
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void * |
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ps_alloc(void) |
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{ |
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return(alloc(NULL, TERMENC_ASCII, TERMTYPE_PS)); |
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} |
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void |
void |
terminal_free(void *arg) |
terminal_free(void *arg) |
{ |
{ |
Line 70 term_free(struct termp *p) |
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Line 90 term_free(struct termp *p) |
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free(p->buf); |
free(p->buf); |
if (p->symtab) |
if (p->symtab) |
chars_free(p->symtab); |
chars_free(p->symtab); |
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free(p); |
free(p); |
} |
} |
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/* |
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* Push a single letter into our output engine. |
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*/ |
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static void |
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letter(struct termp *p, char c) |
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{ |
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if (TERMTYPE_CHAR == p->type) { |
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/* |
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* If using the terminal device, just push the letter |
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* out into the screen. |
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*/ |
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putchar(c); |
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return; |
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} |
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if ( ! (PS_INLINE & p->psstate)) { |
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/* |
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* If we're not in a PostScript "word" context, then |
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* open one now at the current cursor. |
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*/ |
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printf("%zu %zu moveto\n", p->pscol, p->psrow); |
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putchar('('); |
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p->psstate |= PS_INLINE; |
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} |
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/* |
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* We need to escape these characters as per the PostScript |
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* specification. We would also escape non-graphable characters |
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* (like tabs), but none of them would get to this point and |
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* it's superfluous to abort() on them. |
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*/ |
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switch (c) { |
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case ('('): |
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/* FALLTHROUGH */ |
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case (')'): |
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/* FALLTHROUGH */ |
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case ('\\'): |
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putchar('\\'); |
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break; |
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default: |
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break; |
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} |
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/* Write the character and adjust where we are on the page. */ |
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putchar(c); |
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p->pscol += PS_CHAR_WIDTH; |
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} |
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/* |
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* Begin a "terminal" context. Since terminal encompasses PostScript, |
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* the actual terminal, etc., there are a few things we can do here. |
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*/ |
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void |
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term_begin(struct termp *p, term_margin head, |
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term_margin foot, const void *arg) |
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{ |
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p->headf = head; |
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p->footf = foot; |
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p->argf = arg; |
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if (TERMTYPE_CHAR == p->type) { |
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/* Emit the header and be done. */ |
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(*p->headf)(p, p->argf); |
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return; |
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} |
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/* |
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* Emit the standard PostScript prologue, set our initial page |
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* position, then run pageopen() on the initial page. |
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*/ |
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printf("%s\n", "%!PS"); |
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printf("%s\n", "/Courier"); |
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printf("%s\n", "10 selectfont"); |
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p->pspage = 1; |
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p->psstate = 0; |
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pageopen(p); |
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} |
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/* |
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* Open a page. This is only used for -Tps at the moment. It opens a |
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* page context, printing the header and the footer. THE OUTPUT BUFFER |
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* MUST BE EMPTY. If it is not, output will ghost on the next line and |
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* we'll be all gross and out of state. |
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*/ |
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static void |
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pageopen(struct termp *p) |
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{ |
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assert(TERMTYPE_PS == p->type); |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_TOPMARG; |
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p->psstate |= PS_MARGINS; |
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(*p->headf)(p, p->argf); |
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endline(p); |
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p->psstate &= ~PS_MARGINS; |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_BOTMARG; |
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p->psstate |= PS_MARGINS; |
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(*p->footf)(p, p->argf); |
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endline(p); |
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p->psstate &= ~PS_MARGINS; |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_TOP; |
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} |
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void |
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term_end(struct termp *p) |
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{ |
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if (TERMTYPE_CHAR == p->type) { |
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(*p->footf)(p, p->argf); |
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return; |
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} |
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printf("%s\n", "%%END"); |
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} |
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static void |
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endline(struct termp *p) |
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{ |
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if (TERMTYPE_CHAR == p->type) { |
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putchar('\n'); |
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return; |
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} |
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if (PS_INLINE & p->psstate) { |
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printf(") show\n"); |
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p->psstate &= ~PS_INLINE; |
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} |
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if (PS_MARGINS & p->psstate) |
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return; |
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p->pscol = PS_CHAR_LEFT; |
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if (p->psrow >= PS_CHAR_HEIGHT + PS_CHAR_BOT) { |
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p->psrow -= PS_CHAR_HEIGHT; |
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return; |
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} |
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/* |
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* XXX: can't run pageopen() until we're certain a flushln() has |
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* occured, else the buf will reopen in an awkward state on the |
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* next line. |
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*/ |
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printf("showpage\n"); |
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p->psrow = PS_CHAR_TOP; |
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} |
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/* |
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* Advance the output engine by a certain amount of whitespace. |
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*/ |
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static void |
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advance(struct termp *p, size_t len) |
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{ |
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size_t i; |
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if (TERMTYPE_CHAR == p->type) { |
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/* Just print whitespace on the terminal. */ |
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for (i = 0; i < len; i++) |
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putchar(' '); |
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return; |
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} |
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if (PS_INLINE & p->psstate) { |
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/* Dump out any existing line scope. */ |
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printf(") show\n"); |
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p->psstate &= ~PS_INLINE; |
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} |
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p->pscol += len ? len * PS_CHAR_WIDTH : 0; |
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} |
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static struct termp * |
static struct termp * |
term_alloc(char *outopts, enum termenc enc) |
alloc(char *outopts, enum termenc enc, enum termtype type) |
{ |
{ |
struct termp *p; |
struct termp *p; |
const char *toks[2]; |
const char *toks[2]; |
Line 92 term_alloc(char *outopts, enum termenc enc) |
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Line 306 term_alloc(char *outopts, enum termenc enc) |
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exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
} |
} |
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p->type = type; |
p->tabwidth = 5; |
p->tabwidth = 5; |
p->enc = enc; |
p->enc = enc; |
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width = 80; |
width = 80; |
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while (outopts && *outopts) |
while (outopts && *outopts) |
switch (getsubopt(&outopts, UNCONST(toks), &v)) { |
switch (getsubopt(&outopts, UNCONST(toks), &v)) { |
case (0): |
case (0): |
width = atoi(v); |
width = (size_t)atoi(v); |
break; |
break; |
default: |
default: |
break; |
break; |
Line 228 term_flushln(struct termp *p) |
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Line 444 term_flushln(struct termp *p) |
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*/ |
*/ |
if (vend > bp && 0 == jhy && vis > 0) { |
if (vend > bp && 0 == jhy && vis > 0) { |
vend -= vis; |
vend -= vis; |
putchar('\n'); |
endline(p); |
if (TERMP_NOBREAK & p->flags) { |
if (TERMP_NOBREAK & p->flags) { |
p->viscol = p->rmargin; |
p->viscol = p->rmargin; |
for (j = 0; j < (int)p->rmargin; j++) |
advance(p, p->rmargin); |
putchar(' '); |
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vend += p->rmargin - p->offset; |
vend += p->rmargin - p->offset; |
} else { |
} else { |
p->viscol = 0; |
p->viscol = 0; |
Line 276 term_flushln(struct termp *p) |
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Line 491 term_flushln(struct termp *p) |
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* so write preceding white space now. |
* so write preceding white space now. |
*/ |
*/ |
if (vbl) { |
if (vbl) { |
for (j = 0; j < (int)vbl; j++) |
advance(p, vbl); |
putchar(' '); |
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p->viscol += vbl; |
p->viscol += vbl; |
vbl = 0; |
vbl = 0; |
} |
} |
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if (ASCII_HYPH == p->buf[i]) |
if (ASCII_HYPH == p->buf[i]) |
putchar('-'); |
letter(p, '-'); |
else |
else |
putchar(p->buf[i]); |
letter(p, p->buf[i]); |
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p->viscol += 1; |
p->viscol += 1; |
} |
} |
Line 298 term_flushln(struct termp *p) |
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Line 512 term_flushln(struct termp *p) |
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if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
p->viscol = 0; |
p->viscol = 0; |
putchar('\n'); |
endline(p); |
return; |
return; |
} |
} |
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Line 331 term_flushln(struct termp *p) |
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Line 545 term_flushln(struct termp *p) |
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if (maxvis > vis + /* LINTED */ |
if (maxvis > vis + /* LINTED */ |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { |
p->viscol += maxvis - vis; |
p->viscol += maxvis - vis; |
for ( ; vis < maxvis; vis++) |
advance(p, maxvis - vis); |
putchar(' '); |
vis += (maxvis - vis); |
} else { /* ...or newline break. */ |
} else { /* ...or newline break. */ |
putchar('\n'); |
endline(p); |
p->viscol = p->rmargin; |
p->viscol = p->rmargin; |
for (i = 0; i < (int)p->rmargin; i++) |
advance(p, p->rmargin); |
putchar(' '); |
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} |
} |
} |
} |
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Line 373 term_vspace(struct termp *p) |
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Line 586 term_vspace(struct termp *p) |
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term_newln(p); |
term_newln(p); |
p->viscol = 0; |
p->viscol = 0; |
putchar('\n'); |
endline(p); |
} |
} |
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Line 625 encode(struct termp *p, const char *word, size_t sz) |
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Line 838 encode(struct termp *p, const char *word, size_t sz) |
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* character by character. |
* character by character. |
*/ |
*/ |
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if (TERMFONT_NONE == (f = term_fonttop(p))) { |
if (TERMTYPE_PS == p->type) { |
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buffera(p, word, sz); |
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return; |
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} else if (TERMFONT_NONE == (f = term_fonttop(p))) { |
buffera(p, word, sz); |
buffera(p, word, sz); |
return; |
return; |
} |
} |