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xo-interpreter2: scaffold repl + alloc measurement frameowkr

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Roland Conybeare 2026-02-02 21:55:34 -05:00
commit 221402fcbc
1 changed files with 0 additions and 151 deletions
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151
include/xo/indentlog/log_state.hpp
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@ -255,157 +255,6 @@ namespace xo {
// instead of post-processing, rely on newline-aware log_streambuf
// to indent in advance
#ifdef OBSOLETE
log_streambuf_type * sbuf2 = this->p_sbuf_phase2_.get();
/* often sbuf contains one line of output.
* if it contains multiple newlines, need to indent
* after each one.
*
* will scan output in *sbuf1, post-process to *sbuf2,
* then write *sbuf2 to output stream
*
* note: we inherit .lpos from prec call to .flush2sbuf(),
* in the unlikely event that it's non-zero
*/
char const * s = sbuf1->lo();
char const * e = s + sbuf1->pos();
char const * p = s;
/* point to first space following a non-space character.
* will indent to just after this space
*/
char const * space_after_nonspace = nullptr;
/* true on VT100 color escape (\033); in which case false on terminating char (m)
* don't advance lpos during escape
*/
bool in_color_escape = false;
while(true) {
bool have_nonspace = false;
/* invariant: s<=p<=e */
/* for indenting, looking for first 'space following non-space, on first line', if any */
#ifdef OBSOLETE
// ..multiline input should have already been indented by custom log_streambuf.
// may need to extend to recognize terminal control sequences like below
std::size_t lpos_on_newline = 0;
#endif
#ifdef OBSOLETE
while(p < e) {
if(space_after_nonspace) {
;
} else {
if(*p != ' ')
have_nonspace = true;
if(have_nonspace && (*p == ' ')) {
space_after_nonspace = p;
}
}
if (in_color_escape && (*p != '\n')) {
/* in color escape -> don't advance .lpos */
if (*p == 'm')
in_color_escape = false;
++p;
} else if (*p == '\033') {
/* begin color escape sequence */
in_color_escape = true;
++p;
} else if (*p == '\n') {
/* reset .pos on newline; also drop any (incomplete + ill-formed) color escape */
in_color_escape = false;
#ifdef OBSOLETE
lpos_on_newline = this->lpos_;
this->lpos_ = 0;
#endif
++p;
break;
} else {
/* increment .lpos on non-newline */
++(this->lpos_);
++p;
}
}
#endif
/* p=e or *p=\n */
/* charseq [s,p) does not contain any newlines, print it */
if (lpos_on_newline > 0) {
/* charseq [s,p) does not contain any newlines, print it */
sbuf2->sputn(s, p - s - 1);
if (this->location_flag_) {
/* 'tab' to position lpos for [file:line] */
sbuf2->sputc(' ');
for (std::uint32_t i = lpos_on_newline + 1; i < log_config::location_tab; ++i)
sbuf2->sputc(' ');
std::stringstream ss;
ss << code_location(this->file_, this->line_,
log_config::code_location_color);
std::string ss_str = ss.str(); /*hoping for copy elision here*/
sbuf2->sputn(ss_str.c_str(), ss_str.size());
this->location_flag_ = false;
this->file_ = "";
this->line_ = 0;
}
sbuf2->sputc('\n');
} else {
/* control here if .flush2sbuf() called without trailing newline in .p_sbuf_phase1 */
sbuf2->sputn(s, p - s);
}
if (p == e)
break;
// {
// char buf[80];
// snprintf(buf, sizeof(buf), "*** indent=[%d] next=[%c]", this->nesting_level_, *(p+1));
//
// std::clog.rdbuf()->sputn(buf, strlen(buf));
//}
/* control here only for continuation lines (application logging code embedding its own newlines)
* - minimum indent = nesting level;
* - however if space_after_nonspace defined, also indent for that
*/
std::uint32_t n_indent = 0;
n_indent += this->calc_time_indent();
n_indent += std::min(this->nesting_level_ * log_config::indent_width,
log_config::max_indent_width);
#ifdef OBSOLETE // nice try, broken for multiline input + written before log_streambuf calculated lpos
/* this is just to indent for per-line entry/exit label */
if(space_after_nonspace)
n_indent += (space_after_nonspace - s);
#endif
for(std::uint32_t i = 0; i < n_indent; ++i)
sbuf2->sputc(' ');
s = p;
}
/* now write entire contents of *sbuf2 to clog */
p_sbuf->sputn(sbuf2->lo(), sbuf2->pos());
#endif
p_sbuf->sputn(sbuf1->lo(), sbuf1->pos());
/* reset streams for next message */