Files
klammertext/mac/locator.h
T
ack af29bbf7ac Unicode sequences, @typeface, and the font/typeface distinction
A run of Unicode code points now needs one pair of carets, not one pair
each: ^9053 53EF 9053^ renders the characters adjacently, and a single
character inside such a run stands for itself.  An invalid code point is
an error naming the position that wrote it, rather than an apology
rendered into the finished document; noncharacters are refused alongside
surrogates; and a code point that lands on a Klammertext special is safe
through the re-reads that assemble a document.  The character tables now
produce the precomposed form, so a diacritic written as ^a" and one typed
directly are the same text to a search or a copy-paste.

"kdesc -u" describes how to write a Unicode character, with tables of
glyphs beside the codes that produce them.  It is new and not yet
complete: it predates the sequence form and the typeface klammer below.

A typeface and a style are no longer both called "font".  A typeface is a
family resolved by name; a style code is the one letter naming a type
style.  So @document takes :serif_typeface and its siblings, a table takes
:style, captions take :caption_style and :caption_size, the uniform scale
is :text_scale, and the command is "kdesc --typeface".  This renames
arguments a document may already use; an old name is a located error
rather than a silent omission.

@typeface sets a passage in another typeface for the length of that
passage:

    @typeface Noto Sans Egyptian Hieroglyphs | ^132AA 133CF^ :scale 1.5 @

Writing the klammer is the whole declaration -- the document resolves the
typeface, embeds it in what it produces, and carries its license along.
Two typefaces for scripts no text font covers now ship with Klammertext:
Noto Sans Egyptian Hieroglyphs and Noto Sans Cuneiform.  Every typeface in
the distribution now carries its license file.

(from dev 61e598698891)
2026-08-25 23:30:55 +02:00

68 lines
2.5 KiB
C++

#pragma once
#include <iostream>
#include <string>
// #include <filesystem>
#include <source_location>
#include <map>
#include "file.h"
inline std::string klammertext_home_var = "KLAMMERTEXT_HOME";
class Locator
{
public:
explicit Locator(const std::source_location location =
std::source_location::current())
// std::source_location::file_name() can return nullptr on some
// toolchains (e.g. Homebrew GCC on macOS); guard against
// fs::path(nullptr) -> strlen(NULL).
: m_filename(location.file_name()
? fs::absolute(location.file_name()) : fs::path{})
, m_line(int(location.line()))
, m_chr(int(location.column()))
{};
Locator(const fs::path& filename, int line, int chr);
// "No location": for errors with no document position -- command-line
// argument errors, lookups made on the command's behalf. NOT the same
// as Locator(): the default constructor captures the C++ CALL SITE via
// std::source_location (and a defaulted Locator parameter captures the
// CALLER), which is what leaked "argv.cpp, line 597" into user-facing
// errors (found by the error gallery, 2026-08-22). Locator() is for
// logging; errors either carry a real document location or this.
static Locator none() { return Locator(fs::path{}, -1, -1); }
// The inverse of str(): "[<file>:<line>.<column>]" back to a Locator.
// A klammer implementation receives its position as the STATE value
// K_loc, which is that string; without this it can only pass a
// default-constructed Locator, which captures the C++ source location
// and prints a file no user can act on. Anything unparseable gives
// none() -- a missing location beats a wrong one.
static Locator from_string(const std::string& s);
std::string str(bool relative = false) const;
std::string desc(bool relative = false) const;
std::string abbrev(bool include_chr=true) const;
std::string m_filename {};
int m_line;
int m_chr;
//std::string m_desc {};
};
std::ostream &nformat(std::ostream &os);
std::string locator_range(
const Locator& start_loc, const Locator& end_loc,
std::map<std::string, std::string>& relpath);
Locator current_locator(
const std::source_location location = std::source_location::current());
std::string locator_summary(std::vector<Locator> locators);
inline
std::string showloc(Locator loc=Locator()) {
return loc.abbrev(false) + " ";
}