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20742: More Unicode conversion stuff.
This commit is contained in:
Peter Stephenson
parent
b80c6b0863
commit
efd03cf9e8
7 changed files with 290 additions and 113 deletions
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@ -51,7 +51,7 @@ struct cutbuffer vibuf[35];
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/* the line before last mod (for undo purposes) */
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/**/
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char *lastline;
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ZLE_STRING_T lastline;
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/**/
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int lastlinesz, lastll, lastcs;
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@ -67,7 +67,9 @@ void
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sizeline(int sz)
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{
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while (sz > linesz)
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zleline = (ZLE_STRING_T)realloc(zleline, (linesz *= 4) + 2);
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zleline =
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(ZLE_STRING_T)realloc(zleline,
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((linesz *= 4) + 2) * ZLE_CHAR_SIZE);
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}
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/*
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@ -82,22 +84,36 @@ zleaddtoline(ZLE_CHAR_T chr)
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zleline[zlecs++] = chr;
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}
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/*
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* Input a line in internal zle format, possibly using wide characters,
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* possibly not, together with its length and the cursor position.
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* Output an ordinary string, using multibyte characters instead of wide
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* characters where appropriate and with the contents metafied.
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*
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* If outll is non-NULL, assign the new length. If outcs is non-NULL,
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* assign the new character position.
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*
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* If useheap is 1, memory is returned from the heap, else is allocated
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* for later freeing.
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*/
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/**/
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mod_export unsigned char *
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zlegetline(int *ll, int *cs)
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zlelineasstring(ZLE_STRING_T instr, int inll, int incs, int *outll,
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int *outcs, int useheap)
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{
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char *s;
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#ifdef ZLE_UNICODE_SUPPORT
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char *s;
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char *mb_cursor;
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int i, j;
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size_t mb_len = 0;
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mb_cursor = s = zalloc(zlell * MB_CUR_MAX);
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mb_cursor = s = zalloc(inll * MB_CUR_MAX);
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for(i=0;i<=zlell;i++) {
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if (i == zlecs)
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*cs = mb_len;
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j = wctomb(mb_cursor, zleline[i]);
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for(i=0;i<=inll;i++) {
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if (outcs != NULL && i == incs)
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*outcs = mb_len;
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j = wctomb(mb_cursor, instr[i]);
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if (j == -1) {
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/* invalid char; what to do? */
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} else {
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@ -105,14 +121,130 @@ zlegetline(int *ll, int *cs)
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}
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}
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*ll = mb_len;
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#else
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*ll = zlell;
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*cs = zlecs;
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if (outll != NULL)
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*outll = mb_len;
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if (useheap)
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{
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unsigned char *ret =
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(unsigned char *) metafy((char *) s, mb_len, META_HEAPDUP);
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s = ztrdup(zleline);
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zfree((char *)s, inll * MB_CUR_MAX);
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return ret;
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}
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else
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{
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return (unsigned char *) metafy((char *) s, mb_len, META_REALLOC);
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}
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#else
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if (outll != NULL)
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*outll = inll;
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if (outcs != NULL)
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*outcs = incs;
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return (unsigned char *) metafy((char *) instr, inll,
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useheap ? META_HEAPDUP : META_DUP);
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#endif
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return (unsigned char *) metafy((char *) s, zlell, META_REALLOC);
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}
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/*
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* Input a NULL-terminated metafied string instr.
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* Output a line in internal zle format, together with its length
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* in the appropriate character units. Note that outll may not be NULL.
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*
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* If outsz is non-NULL, the number of allocated characters in the
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* string is written there. For compatibility with use of the linesz
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* variable (allocate size of zleline), at least two characters are
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* allocated more than needed for immediate use. (The extra characters
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* may take a newline and a null at a later stage.) These are not
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* included in *outsz.
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*
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* Note that instr is modified in place, hence should be copied
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* first if necessary;
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*
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* Memory for the returned string is permanently allocated. *outsz may
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* be longer than the *outll returned. Hence it should be freed with
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* zfree(outstr, *outsz) or free(outstr), not zfree(outstr, *outll).
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*/
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/**/
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mod_export ZLE_STRING_T
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stringaszleline(unsigned char *instr, int *outll, int *outsz)
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{
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ZLE_STRING_T outstr;
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int ll, sz;
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#ifdef ZLE_UNICODE_SUPPORT
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int cll;
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mbstate_t ps;
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#endif
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unmetafy(instr, &ll);
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/*
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* ll is the maximum number of characters there can be in
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* the output string; the closer to ASCII the string, the
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* better the guess. For the 2 see above.
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*/
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sz = (ll + 2) * ZLE_CHAR_SIZE;
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if (outsz)
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*outsz = ll;
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outstr = (ZLE_STRING_T)zalloc(sz);
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#ifdef ZLE_UNICODE_SUPPORT
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if (ll) {
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/* reset shift state by converting null. */
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char cnull = '\0';
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char *inptr = (char *)instr;
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wchar_t *outptr = outstr;
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mbrtowc(outstr, &cnull, 1, &ps);
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while (ll) {
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size_t ret = mbrtowc(outptr, inptr, ll, &ps);
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/*
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* At this point we don't handle either incomplete (-2) or
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* invalid (-1) multibyte sequences. Use the current length
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* and return.
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*/
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if (ret == (size_t)-1 || ret == (size_t)-2)
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break;
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/*
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* Careful: converting a wide NUL returns zero, but we
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* want to treat NULs as regular characters.
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* The NUL does get converted, however, so test that.
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* Assume it was represented by a single ASCII NUL;
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* certainly true for Unicode and unlikely to be false
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* in any non-pathological multibyte representation.
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*/
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if (*outptr == L'\0' && ret == 0)
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ret = 1;
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inptr += ret;
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outptr++;
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ll -= ret;
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}
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*outll = outptr - outstr;
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}
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else
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*outll = 0;
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#else
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memcpy((char *)outstr, (char *)instr, ll);
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*outll = ll;
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#endif
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return outstr;
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}
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/**/
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mod_export unsigned char *
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zlegetline(int *ll, int *cs)
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{
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return zlelineasstring(zleline, zlell, zlecs, ll, cs, 0);
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}
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@ -128,7 +260,7 @@ spaceinline(int ct)
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for (i = zlell; --i >= zlecs;)
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zleline[i + ct] = zleline[i];
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zlell += ct;
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zleline[zlell] = '\0';
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zleline[zlell] = ZLENUL;
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if (mark > zlecs)
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mark += ct;
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@ -147,7 +279,7 @@ shiftchars(int to, int cnt)
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zleline[to] = zleline[to + cnt];
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to++;
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}
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zleline[zlell = to] = '\0';
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zleline[zlell = to] = ZLENUL;
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}
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/**/
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@ -181,9 +313,9 @@ cut(int i, int ct, int dir)
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struct cutbuffer *b = &vibuf[zmod.vibuf];
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if (!(zmod.flags & MOD_VIAPP) || !b->buf) {
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zfree(b->buf, b->len);
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b->buf = (char *)zalloc(ct);
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memcpy(b->buf, (char *) zleline + i, ct);
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free(b->buf);
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b->buf = (ZLE_STRING_T)zalloc(ct * ZLE_CHAR_SIZE);
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memcpy((char *)b->buf, (char *)(zleline + i), ct * ZLE_CHAR_SIZE);
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b->len = ct;
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b->flags = vilinerange ? CUTBUFFER_LINE : 0;
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} else {
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@ -191,26 +323,32 @@ cut(int i, int ct, int dir)
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if(vilinerange)
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b->flags |= CUTBUFFER_LINE;
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b->buf = realloc(b->buf, ct + len + !!(b->flags & CUTBUFFER_LINE));
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b->buf = (ZLE_STRING_T)
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realloc((char *)b->buf,
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(ct + len + !!(b->flags & CUTBUFFER_LINE))
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* ZLE_CHAR_SIZE);
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if (b->flags & CUTBUFFER_LINE)
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b->buf[len++] = '\n';
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memcpy(b->buf + len, (char *) zleline + i, ct);
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b->buf[len++] = ZLENL;
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memcpy((char *)(b->buf + len), (char *)(zleline + i),
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ct * ZLE_CHAR_SIZE);
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b->len = len + ct;
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}
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return;
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} else {
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/* Save in "1, shifting "1-"8 along to "2-"9 */
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int n;
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zfree(vibuf[34].buf, vibuf[34].len);
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free(vibuf[34].buf);
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for(n=34; n>26; n--)
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vibuf[n] = vibuf[n-1];
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vibuf[26].buf = (char *)zalloc(ct);
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memcpy(vibuf[26].buf, (char *) zleline + i, ct);
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vibuf[26].buf = (ZLE_STRING_T)zalloc(ct * ZLE_CHAR_SIZE);
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memcpy((char *)vibuf[26].buf, (char *)(zleline + i),
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ct * ZLE_CHAR_SIZE);
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vibuf[26].len = ct;
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vibuf[26].flags = vilinerange ? CUTBUFFER_LINE : 0;
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}
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if (!cutbuf.buf) {
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cutbuf.buf = ztrdup("");
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cutbuf.buf = (ZLE_STRING_T)zalloc(ZLE_CHAR_SIZE);
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cutbuf.buf[0] = ZLENUL;
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cutbuf.len = cutbuf.flags = 0;
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} else if (!(lastcmd & ZLE_KILL)) {
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Cutbuffer kptr;
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@ -221,22 +359,26 @@ cut(int i, int ct, int dir)
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kringnum = (kringnum + 1) % kringsize;
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kptr = kring + kringnum;
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if (kptr->buf)
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zfree(kptr->buf, kptr->len);
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free(kptr->buf);
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*kptr = cutbuf;
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cutbuf.buf = ztrdup("");
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cutbuf.buf = (ZLE_STRING_T)zalloc(ZLE_CHAR_SIZE);
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cutbuf.buf[0] = ZLENUL;
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cutbuf.len = cutbuf.flags = 0;
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}
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if (dir) {
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char *s = (char *)zalloc(cutbuf.len + ct);
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ZLE_STRING_T s = (ZLE_STRING_T)zalloc((cutbuf.len + ct)*ZLE_CHAR_SIZE);
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memcpy(s, (char *) zleline + i, ct);
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memcpy(s + ct, cutbuf.buf, cutbuf.len);
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memcpy(s, (char *) (zleline + i), ct * ZLE_CHAR_SIZE);
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memcpy((char *)(s + ct), (char *)cutbuf.buf,
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cutbuf.len * ZLE_CHAR_SIZE);
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free(cutbuf.buf);
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cutbuf.buf = s;
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cutbuf.len += ct;
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} else {
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cutbuf.buf = realloc(cutbuf.buf, cutbuf.len + ct);
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memcpy(cutbuf.buf + cutbuf.len, (char *) zleline + i, ct);
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cutbuf.buf = realloc((char *)cutbuf.buf,
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(cutbuf.len + ct) * ZLE_CHAR_SIZE);
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memcpy((char *)(cutbuf.buf + cutbuf.len), (char *) (zleline + i),
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ct * ZLE_CHAR_SIZE);
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cutbuf.len += ct;
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}
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if(vilinerange)
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@ -263,11 +405,19 @@ foredel(int ct)
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void
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setline(char const *s)
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{
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sizeline(strlen(s));
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strcpy((char *) zleline, s);
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unmetafy((char *) zleline, &zlell);
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char *scp = ztrdup(s);
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/*
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* TBD: we could make this more efficient by passing the existing
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* allocated line to stringaszleline.
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*/
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free(zleline);
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zleline = stringaszleline(scp, &zlell, &linesz);
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if ((zlecs = zlell) && invicmdmode())
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zlecs--;
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free(scp);
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}
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/**/
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@ -276,7 +426,7 @@ findbol(void)
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{
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int x = zlecs;
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while (x > 0 && zleline[x - 1] != '\n')
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while (x > 0 && zleline[x - 1] != ZLENL)
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x--;
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return x;
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}
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@ -287,7 +437,7 @@ findeol(void)
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{
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int x = zlecs;
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while (x != zlell && zleline[x] != '\n')
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while (x != zlell && zleline[x] != ZLENL)
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x++;
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return x;
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}
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@ -328,15 +478,18 @@ hstrnstr(char *haystack, int pos, char *needle, int len, int dir, int sens)
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return NULL;
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}
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/* Query the user, and return a single character response. The *
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* question is assumed to have been printed already, and the *
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* cursor is left immediately after the response echoed. *
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* (Might cause a problem if this takes it onto the next line.) *
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* If yesno is non-zero: *
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* <Tab> is interpreted as 'y'; any other control character is *
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* interpreted as 'n'. If there are any characters in the *
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* buffer, this is taken as a negative response, and no *
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* characters are read. Case is folded. */
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/*
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* Query the user, and return a single character response. The question
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* is assumed to have been printed already, and the cursor is left
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* immediately after the response echoed. (Might cause a problem if
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* this takes it onto the next line.) If yesno is non-zero: <Tab> is
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* interpreted as 'y'; any other control character is interpreted as
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* 'n'. If there are any characters in the buffer, this is taken as a
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* negative response, and no characters are read. Case is folded.
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*
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* TBD: this may need extending to return a wchar_t or possibly
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* a wint_t.
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*/
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/**/
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mod_export int
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@ -496,8 +649,9 @@ initundo(void)
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changes = curchange = zalloc(sizeof(*curchange));
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curchange->prev = curchange->next = NULL;
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curchange->del = curchange->ins = NULL;
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lastline = zalloc(lastlinesz = linesz);
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memcpy(lastline, zleline, lastll = zlell);
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curchange->dell = curchange->insl = 0;
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lastline = zalloc((lastlinesz = linesz) * ZLE_CHAR_SIZE);
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memcpy(lastline, zleline, (lastll = zlell) * ZLE_CHAR_SIZE);
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lastcs = zlecs;
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}
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@ -518,8 +672,8 @@ freechanges(struct change *p)
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for(; p; p = n) {
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n = p->next;
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zsfree(p->del);
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zsfree(p->ins);
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free(p->del);
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free(p->ins);
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zfree(p, sizeof(*p));
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}
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}
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@ -537,9 +691,10 @@ handleundo(void)
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if(curchange->next) {
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freechanges(curchange->next);
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curchange->next = NULL;
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zsfree(curchange->del);
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zsfree(curchange->ins);
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free(curchange->del);
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free(curchange->ins);
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curchange->del = curchange->ins = NULL;
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curchange->dell = curchange->insl = 0;
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}
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nextchanges->prev = curchange->prev;
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if(curchange->prev)
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@ -561,7 +716,7 @@ mkundoent(void)
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int sh = zlell < lastll ? zlell : lastll;
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struct change *ch;
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if(lastll == zlell && !memcmp(lastline, zleline, zlell))
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if(lastll == zlell && !memcmp(lastline, zleline, zlell * ZLE_CHAR_SIZE))
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return;
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for(pre = 0; pre < sh && zleline[pre] == lastline[pre]; )
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pre++;
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@ -574,14 +729,24 @@ mkundoent(void)
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ch->off = pre;
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ch->old_cs = lastcs;
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ch->new_cs = zlecs;
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if(suf + pre == lastll)
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if(suf + pre == lastll) {
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ch->del = NULL;
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else
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ch->del = metafy(lastline + pre, lastll - pre - suf, META_DUP);
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if(suf + pre == zlell)
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ch->dell = 0;
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} else {
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ch->dell = lastll - pre - suf;
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ch->del = (ZLE_STRING_T)zalloc(ch->dell * ZLE_CHAR_SIZE);
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memcpy((char *)ch->del, (char *)(lastline + pre),
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ch->dell * ZLE_CHAR_SIZE);
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}
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if(suf + pre == zlell) {
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ch->ins = NULL;
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else
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ch->ins = metafy((char *)zleline + pre, zlell - pre - suf, META_DUP);
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ch->insl = 0;
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} else {
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ch->insl = zlell - pre - suf;
|
||||
ch->ins = (ZLE_STRING_T)zalloc(ch->insl * ZLE_CHAR_SIZE);
|
||||
memcpy((char *)ch->ins, (char *)(zleline + pre),
|
||||
ch->insl * ZLE_CHAR_SIZE);
|
||||
}
|
||||
if(nextchanges) {
|
||||
ch->flags = CH_PREV;
|
||||
ch->prev = endnextchanges;
|
||||
|
|
@ -602,8 +767,8 @@ void
|
|||
setlastline(void)
|
||||
{
|
||||
if(lastlinesz != linesz)
|
||||
lastline = realloc(lastline, lastlinesz = linesz);
|
||||
memcpy(lastline, zleline, lastll = zlell);
|
||||
lastline = realloc(lastline, (lastlinesz = linesz) * ZLE_CHAR_SIZE);
|
||||
memcpy(lastline, zleline, (lastll = zlell) * ZLE_CHAR_SIZE);
|
||||
lastcs = zlecs;
|
||||
}
|
||||
|
||||
|
|
@ -637,16 +802,12 @@ unapplychange(struct change *ch)
|
|||
}
|
||||
zlecs = ch->off;
|
||||
if(ch->ins)
|
||||
foredel(ztrlen(ch->ins));
|
||||
foredel(ch->insl);
|
||||
if(ch->del) {
|
||||
char *c = ch->del;
|
||||
|
||||
spaceinline(ztrlen(c));
|
||||
for(; *c; c++)
|
||||
if(*c == Meta)
|
||||
zleline[zlecs++] = STOUC(*++c) ^ 32;
|
||||
else
|
||||
zleline[zlecs++] = STOUC(*c);
|
||||
spaceinline(ch->dell);
|
||||
memcpy((char *)(zleline + zlecs), (char *)ch->del,
|
||||
ch->dell * ZLE_CHAR_SIZE);
|
||||
zlecs += ch->dell;
|
||||
}
|
||||
zlecs = ch->old_cs;
|
||||
return 1;
|
||||
|
|
@ -682,16 +843,12 @@ applychange(struct change *ch)
|
|||
}
|
||||
zlecs = ch->off;
|
||||
if(ch->del)
|
||||
foredel(ztrlen(ch->del));
|
||||
foredel(ch->dell);
|
||||
if(ch->ins) {
|
||||
char *c = ch->ins;
|
||||
|
||||
spaceinline(ztrlen(c));
|
||||
for(; *c; c++)
|
||||
if(*c == Meta)
|
||||
zleline[zlecs++] = STOUC(*++c) ^ 32;
|
||||
else
|
||||
zleline[zlecs++] = STOUC(*c);
|
||||
spaceinline(ch->insl);
|
||||
memcpy((char *)(zleline + zlecs), (char *)ch->ins,
|
||||
ch->insl * ZLE_CHAR_SIZE);
|
||||
zlecs += ch->insl;
|
||||
}
|
||||
zlecs = ch->new_cs;
|
||||
return 1;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue