diff options
Diffstat (limited to 'src/doc.c')
| -rw-r--r-- | src/doc.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/src/doc.c b/src/doc.c index 8b18fb0a5a2..32d65563fd9 100644 --- a/src/doc.c +++ b/src/doc.c @@ -693,15 +693,21 @@ summary). Each substring of the form \\=\\<MAPVAR> specifies the use of MAPVAR as the keymap for future \\=\\[COMMAND] substrings. -\\=\\= quotes the following character and is discarded; -thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output. + +Each \\=` is replaced by ‘. Each ' preceded by \\=` and without +intervening ' is replaced by ’. + +\\=\\= quotes the following character and is discarded; thus, +\\=\\=\\=\\= puts \\=\\= into the output, \\=\\=\\=\\[ puts \\=\\[ into the output, and +\\=\\=\\=` puts \\=` into the output. Return the original STRING if no substitutions are made. Otherwise, return a new string. */) (Lisp_Object string) { char *buf; - bool changed = 0; + bool changed = false; + bool in_quote = false; unsigned char *strp; char *bufp; ptrdiff_t idx; @@ -734,6 +740,12 @@ Otherwise, return a new string. */) keymap = Voverriding_local_map; bsize = SBYTES (string); + + /* Add some room for expansion due to quote replacement. */ + enum { EXTRA_ROOM = 20 }; + if (bsize <= STRING_BYTES_BOUND - EXTRA_ROOM) + bsize += EXTRA_ROOM; + bufp = buf = xmalloc (bsize); strp = SDATA (string); @@ -743,7 +755,7 @@ Otherwise, return a new string. */) { /* \= quotes the next character; thus, to put in \[ without its special meaning, use \=\[. */ - changed = 1; + changed = true; strp += 2; if (multibyte) { @@ -766,7 +778,6 @@ Otherwise, return a new string. */) ptrdiff_t start_idx; bool follow_remap = 1; - changed = 1; strp += 2; /* skip \[ */ start = strp; start_idx = start - SDATA (string); @@ -833,7 +844,6 @@ Otherwise, return a new string. */) Lisp_Object earlier_maps; ptrdiff_t count = SPECPDL_INDEX (); - changed = 1; strp += 2; /* skip \{ or \< */ start = strp; start_idx = start - SDATA (string); @@ -903,6 +913,7 @@ Otherwise, return a new string. */) length = SCHARS (tem); length_byte = SBYTES (tem); subst: + changed = true; { ptrdiff_t offset = bufp - buf; if (STRING_BYTES_BOUND - length_byte < bsize) @@ -916,6 +927,22 @@ Otherwise, return a new string. */) strp = SDATA (string) + idx; } } + else if (strp[0] == '`') + { + in_quote = true; + start = (unsigned char *) "\xE2\x80\x98"; /* ‘ */ + subst_quote: + length = 1; + length_byte = 3; + idx = strp - SDATA (string) + 1; + goto subst; + } + else if (strp[0] == '\'' && in_quote) + { + in_quote = false; + start = (unsigned char *) "\xE2\x80\x99"; /* ’ */ + goto subst_quote; + } else if (! multibyte) /* just copy other chars */ *bufp++ = *strp++, nchars++; else |