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FindAdv: Allow compilation with c++20

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This commit is contained in:
Kornel Benko 2020-12-28 16:42:54 +01:00
parent d927e9343c
commit ab7ac800dc
1 changed files with 61 additions and 23 deletions
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84
src/lyxfind.cpp
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@ -1307,35 +1307,73 @@ static void buildaccent(string n, string param, string values)
}
}
// Helper function
static string getutf8(unsigned uchar)
{
#define maxc 5
string ret = string();
char c[maxc] = {0};
if (uchar <= 0x7f) {
c[maxc-1] = uchar & 0x7f;
}
else {
unsigned char rest = 0x40;
unsigned char first = 0x80;
int start = maxc-1;
if (uchar >= (1 << 11)) {
// needed at least 3 bytes
c[4] = (uchar & 0x0f) | 0x30;
uchar >>= 4;
start = maxc-2;
}
for (int i = start; i >=0; --i) {
if (uchar < rest) {
c[i] = first + uchar;
break;
}
c[i] = 0x80 | (uchar & 0x3f);
uchar >>= 6;
rest >>= 1;
first >>= 1;
first |= 0x80;
}
}
for (int i = 0; i < maxc; i++) {
if (c[i] == 0) continue;
ret += c[i];
}
return(ret);
}
static void buildAccentsMap()
{
accents["imath"] = "ı";
accents["i"] = "ı";
accents["jmath"] = "ȷ";
accents["cdot"] = "·";
accents["hairspace"] = u8"\uf0000"; // select from free unicode plane 15
accents["thinspace"] = u8"\uf0002"; // and used _only_ by findadv
accents["negthinspace"] = u8"\uf0003"; // to omit backslashed latex macros
accents["medspace"] = u8"\uf0004"; // See https://en.wikipedia.org/wiki/Private_Use_Areas
accents["negmedspace"] = u8"\uf0005";
accents["thickspace"] = u8"\uf0006";
accents["negthickspace"] = u8"\uf0007";
accents["lyx"] = u8"\uf0010"; // Used logos
accents["LyX"] = u8"\uf0010";
accents["tex"] = u8"\uf0011";
accents["TeX"] = u8"\uf0011";
accents["latex"] = u8"\uf0012";
accents["LaTeX"] = u8"\uf0012";
accents["latexe"] = u8"\uf0013";
accents["LaTeXe"] = u8"\uf0013";
accents["backslash lyx"] = u8"\uf0010"; // Used logos inserted with starting \backslash
accents["backslash LyX"] = u8"\uf0010";
accents["backslash tex"] = u8"\uf0011";
accents["backslash TeX"] = u8"\uf0011";
accents["backslash latex"] = u8"\uf0012";
accents["backslash LaTeX"] = u8"\uf0012";
accents["backslash latexe"] = u8"\uf0013";
accents["backslash LaTeXe"] = u8"\uf0013";
accents["hairspace"] = getutf8(0xf0000); // select from free unicode plane 15
accents["thinspace"] = getutf8(0xf0002); // and used _only_ by findadv
accents["negthinspace"] = getutf8(0xf0003); // to omit backslashed latex macros
accents["medspace"] = getutf8(0xf0004); // See https://en.wikipedia.org/wiki/Private_Use_Areas
accents["negmedspace"] = getutf8(0xf0005);
accents["thickspace"] = getutf8(0xf0006);
accents["negthickspace"] = getutf8(0xf0007);
accents["lyx"] = getutf8(0xf0010); // Used logos
accents["LyX"] = getutf8(0xf0010);
accents["tex"] = getutf8(0xf0011);
accents["TeX"] = getutf8(0xf0011);
accents["latex"] = getutf8(0xf0012);
accents["LaTeX"] = getutf8(0xf0012);
accents["latexe"] = getutf8(0xf0013);
accents["LaTeXe"] = getutf8(0xf0013);
accents["backslash lyx"] = getutf8(0xf0010); // Used logos inserted with starting \backslash
accents["backslash LyX"] = getutf8(0xf0010);
accents["backslash tex"] = getutf8(0xf0011);
accents["backslash TeX"] = getutf8(0xf0011);
accents["backslash latex"] = getutf8(0xf0012);
accents["backslash LaTeX"] = getutf8(0xf0012);
accents["backslash latexe"] = getutf8(0xf0013);
accents["backslash LaTeXe"] = getutf8(0xf0013);
accents["ddot{\\imath}"] = "ï";
buildaccent("ddot", "aAeEhHiIioOtuUwWxXyY",
"äÄëËḧḦïÏïöÖẗüÜẅẄẍẌÿŸ"); // umlaut