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LSP integration steps 1-4, part of 5.

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Kyle Isom
2025-12-01 20:09:49 -08:00
parent ceef6af3ae
commit e089c6e4d1
56 changed files with 3685 additions and 1638 deletions
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122
LispHighlighter.cc
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@@ -3,39 +3,105 @@
#include <cctype>
namespace kte {
static void
push(std::vector<HighlightSpan> &out, int a, int b, TokenKind k)
{
if (b > a)
out.push_back({a, b, k});
}
static void push(std::vector<HighlightSpan> &out, int a, int b, TokenKind k){ if (b>a) out.push_back({a,b,k}); }
LispHighlighter::LispHighlighter()
{
const char* kw[] = {"defun","lambda","let","let*","define","set!","if","cond","begin","quote","quasiquote","unquote","unquote-splicing","loop","do","and","or","not"};
for (auto s: kw) kws_.insert(s);
const char *kw[] = {
"defun", "lambda", "let", "let*", "define", "set!", "if", "cond", "begin", "quote", "quasiquote",
"unquote", "unquote-splicing", "loop", "do", "and", "or", "not"
};
for (auto s: kw)
kws_.insert(s);
}
void LispHighlighter::HighlightLine(const Buffer &buf, int row, std::vector<HighlightSpan> &out) const
void
LispHighlighter::HighlightLine(const Buffer &buf, int row, std::vector<HighlightSpan> &out) const
{
const auto &rows = buf.Rows();
if (row < 0 || static_cast<std::size_t>(row) >= rows.size()) return;
std::string s = static_cast<std::string>(rows[static_cast<std::size_t>(row)]);
int n = static_cast<int>(s.size());
int i = 0;
int bol = 0; while (bol<n && (s[bol]==' '||s[bol]=='\t')) ++bol;
if (bol < n && s[bol] == ';') { push(out, bol, n, TokenKind::Comment); if (bol>0) push(out,0,bol,TokenKind::Whitespace); return; }
while (i < n) {
char c = s[i];
if (c==' '||c=='\t') { int j=i+1; while (j<n && (s[j]==' '||s[j]=='\t')) ++j; push(out,i,j,TokenKind::Whitespace); i=j; continue; }
if (c==';') { push(out,i,n,TokenKind::Comment); break; }
if (c=='"') { int j=i+1; bool esc=false; while (j<n){ char d=s[j++]; if (esc){esc=false; continue;} if (d=='\\'){esc=true; continue;} if (d=='"') break; } push(out,i,j,TokenKind::String); i=j; continue; }
if (std::isalpha(static_cast<unsigned char>(c)) || c=='*' || c=='-' || c=='+' || c=='/' || c=='_' ) {
int j=i+1; while (j<n && (std::isalnum(static_cast<unsigned char>(s[j])) || s[j]=='*' || s[j]=='-' || s[j]=='+' || s[j]=='/' || s[j]=='_' || s[j]=='!')) ++j;
std::string id=s.substr(i,j-i);
TokenKind k = kws_.count(id) ? TokenKind::Keyword : TokenKind::Identifier;
push(out,i,j,k); i=j; continue;
}
if (std::isdigit(static_cast<unsigned char>(c))) { int j=i+1; while (j<n && (std::isdigit(static_cast<unsigned char>(s[j]))||s[j]=='.')) ++j; push(out,i,j,TokenKind::Number); i=j; continue; }
if (std::ispunct(static_cast<unsigned char>(c))) { TokenKind k=TokenKind::Punctuation; push(out,i,i+1,k); ++i; continue; }
push(out,i,i+1,TokenKind::Default); ++i;
}
const auto &rows = buf.Rows();
if (row < 0 || static_cast<std::size_t>(row) >= rows.size())
return;
std::string s = static_cast<std::string>(rows[static_cast<std::size_t>(row)]);
int n = static_cast<int>(s.size());
int i = 0;
int bol = 0;
while (bol < n && (s[bol] == ' ' || s[bol] == '\t'))
++bol;
if (bol < n && s[bol] == ';') {
push(out, bol, n, TokenKind::Comment);
if (bol > 0)
push(out, 0, bol, TokenKind::Whitespace);
return;
}
while (i < n) {
char c = s[i];
if (c == ' ' || c == '\t') {
int j = i + 1;
while (j < n && (s[j] == ' ' || s[j] == '\t'))
++j;
push(out, i, j, TokenKind::Whitespace);
i = j;
continue;
}
if (c == ';') {
push(out, i, n, TokenKind::Comment);
break;
}
if (c == '"') {
int j = i + 1;
bool esc = false;
while (j < n) {
char d = s[j++];
if (esc) {
esc = false;
continue;
}
if (d == '\\') {
esc = true;
continue;
}
if (d == '"')
break;
}
push(out, i, j, TokenKind::String);
i = j;
continue;
}
if (std::isalpha(static_cast<unsigned char>(c)) || c == '*' || c == '-' || c == '+' || c == '/' || c ==
'_') {
int j = i + 1;
while (j < n && (std::isalnum(static_cast<unsigned char>(s[j])) || s[j] == '*' || s[j] == '-' ||
s[j] == '+' || s[j] == '/' || s[j] == '_' || s[j] == '!'))
++j;
std::string id = s.substr(i, j - i);
TokenKind k = kws_.count(id) ? TokenKind::Keyword : TokenKind::Identifier;
push(out, i, j, k);
i = j;
continue;
}
if (std::isdigit(static_cast<unsigned char>(c))) {
int j = i + 1;
while (j < n && (std::isdigit(static_cast<unsigned char>(s[j])) || s[j] == '.'))
++j;
push(out, i, j, TokenKind::Number);
i = j;
continue;
}
if (std::ispunct(static_cast<unsigned char>(c))) {
TokenKind k = TokenKind::Punctuation;
push(out, i, i + 1, k);
++i;
continue;
}
push(out, i, i + 1, TokenKind::Default);
++i;
}
}
} // namespace kte
} // namespace kte