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//
// Fluid file routines for the Fast Light Tool Kit (FLTK).
//
// You may find the basic read_* and write_* routines to
// be useful for other programs. I have used them many times.
// They are somewhat similar to tcl, using matching { and }
// to quote strings.
//
// Copyright 1998-2023 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#include "io/Project_Writer.h"
#include "app/fluid.h"
#include "app/project.h"
#include "app/shell_command.h"
#include "app/undo.h"
#include "app/Fd_Snap_Action.h"
/// \defgroup flfile .fl Project File Operations
/// \{
using namespace fld;
using namespace fld::io;
/** \brief Write an .fl design description file.
The .fl file format is documented in `fluid/README_fl.txt`.
\param[in] filename create this file, and if it exists, overwrite it
\param[in] selected_only write only the selected nodes in the widget_tree. This
is used to implement copy and paste.
\return 0 if the operation failed, 1 if it succeeded
*/
int fld::io::write_file(const char *filename, int selected_only, bool to_codeview) {
Project_Writer out;
return out.write_project(filename, selected_only, to_codeview);
}
// ---- Project_Writer ---------------------------------------------- MARK: -
/** \brief Construct local project writer. */
Project_Writer::Project_Writer()
: fout(NULL),
needspace(0),
write_codeview_(false)
{
}
/** \brief Release project writer resources. */
Project_Writer::~Project_Writer()
{
}
/**
Open the .fl design file for writing.
If the filename is NULL, associate stdout instead.
\param[in] s the filename or NULL for stdout
\return 1 if successful. 0 if the operation failed
*/
int Project_Writer::open_write(const char *s) {
if (!s) {
fout = stdout;
} else {
FILE *f = fl_fopen(s,"wb");
if (!f) return 0;
fout = f;
}
return 1;
}
/**
Close the .fl design file.
Don't close, if data was sent to stdout.
\return 1 if succeeded, 0 if fclose failed
*/
int Project_Writer::close_write() {
if (fout != stdout) {
int x = fclose(fout);
fout = stdout;
return x >= 0;
}
return 1;
}
/** \brief Write an .fl design description file.
\param[in] filename create this file, and if it exists, overwrite it
\param[in] selected_only write only the selected nodes in the widget_tree. This
is used to implement copy and paste.
\param[in] sv if set, this file will be used by codeview
\return 0 if the operation failed, 1 if it succeeded
*/
int Project_Writer::write_project(const char *filename, int selected_only, bool sv) {
write_codeview_ = sv;
undo_suspend();
if (!open_write(filename)) {
undo_resume();
return 0;
}
write_string("# data file for the Fltk User Interface Designer (fluid)\n"
"version %.4f",FL_VERSION);
if(!g_project.include_H_from_C)
write_string("\ndo_not_include_H_from_C");
if(g_project.use_FL_COMMAND)
write_string("\nuse_FL_COMMAND");
if (g_project.utf8_in_src)
write_string("\nutf8_in_src");
if (g_project.avoid_early_includes)
write_string("\navoid_early_includes");
if (g_project.i18n_type) {
write_string("\ni18n_type %d", g_project.i18n_type);
switch (g_project.i18n_type) {
case FD_I18N_NONE:
break;
case FD_I18N_GNU : /* GNU gettext */
write_string("\ni18n_include"); write_word(g_project.i18n_gnu_include.c_str());
write_string("\ni18n_conditional"); write_word(g_project.i18n_gnu_conditional.c_str());
write_string("\ni18n_gnu_function"); write_word(g_project.i18n_gnu_function.c_str());
write_string("\ni18n_gnu_static_function"); write_word(g_project.i18n_gnu_static_function.c_str());
break;
case FD_I18N_POSIX : /* POSIX catgets */
write_string("\ni18n_include"); write_word(g_project.i18n_pos_include.c_str());
write_string("\ni18n_conditional"); write_word(g_project.i18n_pos_conditional.c_str());
if (!g_project.i18n_pos_file.empty()) {
write_string("\ni18n_pos_file");
write_word(g_project.i18n_pos_file.c_str());
}
write_string("\ni18n_pos_set"); write_word(g_project.i18n_pos_set.c_str());
break;
}
}
if (!selected_only) {
write_string("\nheader_name"); write_word(g_project.header_file_name.c_str());
write_string("\ncode_name"); write_word(g_project.code_file_name.c_str());
g_layout_list.write(this);
if (g_shell_config)
g_shell_config->write(this);
if (g_project.write_mergeback_data)
write_string("\nmergeback %d", g_project.write_mergeback_data);
}
for (Fl_Type *p = Fl_Type::first; p;) {
if (!selected_only || p->selected) {
p->write(*this);
write_string("\n");
int q = p->level;
for (p = p->next; p && p->level > q; p = p->next) {/*empty*/}
} else {
p = p->next;
}
}
int ret = close_write();
undo_resume();
return ret;
}
/**
Write a string to the .fl file, quoting characters if necessary.
\param[in] w NUL terminated text
*/
void Project_Writer::write_word(const char *w) {
if (needspace) putc(' ', fout);
needspace = 1;
if (!w || !*w) {fprintf(fout,"{}"); return;}
const char *p;
// see if it is a single word:
for (p = w; is_id(*p); p++) ;
if (!*p) {fprintf(fout,"%s",w); return;}
// see if there are matching braces:
int n = 0;
for (p = w; *p; p++) {
if (*p == '{') n++;
else if (*p == '}') {n--; if (n<0) break;}
}
int mismatched = (n != 0);
// write out brace-quoted string:
putc('{', fout);
for (; *w; w++) {
switch (*w) {
case '{':
case '}':
if (!mismatched) break;
case '\\':
case '#':
putc('\\',fout);
break;
}
putc(*w,fout);
}
putc('}', fout);
}
/**
Write an arbitrary formatted word to the .fl file, or a comment, etc .
If needspace is set, then one space is written before the string
unless the format starts with a newline character \\n.
\param[in] format printf style formatting string followed by a list of arguments
*/
void Project_Writer::write_string(const char *format, ...) {
va_list args;
va_start(args, format);
if (needspace && *format != '\n') fputc(' ',fout);
vfprintf(fout, format, args);
va_end(args);
needspace = !isspace(format[strlen(format)-1] & 255);
}
/**
Start a new line in the .fl file and indent it for a given nesting level.
\param[in] n indent level
*/
void Project_Writer::write_indent(int n) {
fputc('\n',fout);
while (n--) {fputc(' ',fout); fputc(' ',fout);}
needspace = 0;
}
/**
Write a '{' to the .fl file at the given indenting level.
*/
void Project_Writer::write_open() {
if (needspace) fputc(' ',fout);
fputc('{',fout);
needspace = 0;
}
/**
Write a '}' to the .fl file at the given indenting level.
\param[in] n indent level
*/
void Project_Writer::write_close(int n) {
if (needspace) write_indent(n);
fputc('}',fout);
needspace = 1;
}
/// \}
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