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add generic writer class with formatting function to FunctionalTools

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This commit is contained in:
Emily Schmidt 2024-07-04 10:22:51 +01:00
parent 32cdf25838
commit 9700df50d6
4 changed files with 203 additions and 160 deletions
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51
kernel/functionalir.cc
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@ -443,4 +443,55 @@ void FunctionalIR::forward_buf() {
_graph.permute(perm, alias);
}
static std::string quote_fmt(const char *fmt)
{
std::string r;
for(const char *p = fmt; *p != 0; p++) {
switch(*p) {
case '\n': r += "\\n"; break;
case '\t': r += "\\t"; break;
case '"': r += "\\\""; break;
case '\\': r += "\\\\"; break;
default: r += *p; break;
}
}
return r;
}
void FunctionalTools::Writer::print_impl(const char *fmt, vector<std::function<void()>> &fns)
{
size_t next_index = 0;
for(const char *p = fmt; *p != 0; p++)
switch(*p) {
case '{':
if(*++p == '{') {
*os << '{';
} else {
char *pe;
size_t index = strtoul(p, &pe, 10);
if(*pe != '}')
log_error("invalid format string: expected {<number>}, {} or {{, got \"%s\": \"%s\"\n",
quote_fmt(std::string(p - 1, pe - p + 2).c_str()).c_str(),
quote_fmt(fmt).c_str());
if(p == pe)
index = next_index;
else
p = pe;
if(index >= fns.size())
log_error("invalid format string: index %zu out of bounds (%zu): \"%s\"\n", index, fns.size(), quote_fmt(fmt).c_str());
fns[index]();
next_index = index + 1;
}
break;
case '}':
p++;
if(*p != '}')
log_error("invalid format string: unescaped }: \"%s\"\n", quote_fmt(fmt).c_str());
*os << '}';
break;
default:
*os << *p;
}
}
YOSYS_NAMESPACE_END