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Clean up str.__repr__ for small generated code

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This commit is contained in:
K. Lange 2024-03-05 18:40:36 +09:00
parent 2b5df70d5a
commit 7acf2cd528
1 changed files with 28 additions and 26 deletions
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54
src/obj_str.c
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@ -892,33 +892,35 @@ KRK_Method(str,__repr__) {
pushStringBuilder(&sb, quote); pushStringBuilder(&sb, quote);
for (char * c = AS_CSTRING(argv[0]); c < end; ++c) { for (char * c = AS_CSTRING(argv[0]); c < end; ++c) {
switch (*c) { unsigned char ch = *c;
/* XXX: Other non-printables should probably be escaped as well. */ if (ch < ' ' || ch == 0x7F) {
case '\\': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'\\'); break; pushStringBuilder(&sb,'\\');
case '\'': if (quote == *c) { pushStringBuilder(&sb,'\\'); } pushStringBuilder(&sb,'\''); break; pushStringBuilder(&sb,'x');
case '\"': if (quote == *c) { pushStringBuilder(&sb,'\\'); } pushStringBuilder(&sb,'\"'); break; char hex[3];
case '\a': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'a'); break; snprintf(hex, 3, "%02x", (unsigned char)*c);
case '\b': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'b'); break; pushStringBuilder(&sb,hex[0]);
case '\f': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'f'); break; pushStringBuilder(&sb,hex[1]);
case '\n': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'n'); break; continue;
case '\r': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'r'); break;
case '\t': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'t'); break;
case '\v': pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'v'); break;
case 27: pushStringBuilder(&sb,'\\'); pushStringBuilder(&sb,'['); break;
default: {
if ((unsigned char)*c < ' ' || (unsigned char)*c == 0x7F) {
pushStringBuilder(&sb,'\\');
pushStringBuilder(&sb,'x');
char hex[3];
snprintf(hex, 3, "%02x", (unsigned char)*c);
pushStringBuilder(&sb,hex[0]);
pushStringBuilder(&sb,hex[1]);
} else {
pushStringBuilder(&sb,*c);
}
break;
}
} }
int addSlash = 0;
switch (ch) {
/* XXX: Other non-printables should probably be escaped as well. */
case '\'': addSlash = (quote == ch); ch = '\''; break;
case '\"': addSlash = (quote == ch); ch = '\"'; break;
case '\\': addSlash = 1; ch = '\\'; break;
case '\a': addSlash = 1; ch = 'a'; break;
case '\b': addSlash = 1; ch = 'b'; break;
case '\f': addSlash = 1; ch = 'f'; break;
case '\n': addSlash = 1; ch = 'n'; break;
case '\r': addSlash = 1; ch = 'r'; break;
case '\t': addSlash = 1; ch = 't'; break;
case '\v': addSlash = 1; ch = 'v'; break;
case 27: addSlash = 1; ch = '['; break;
default: break;
}
if (addSlash) krk_pushStringBuilder(&sb,'\\');
krk_pushStringBuilder(&sb,ch);
} }
pushStringBuilder(&sb, quote); pushStringBuilder(&sb, quote);