README.txt
==========
Syntax
======
This directory contains a very simple INI file parser. An INI file consists
of a sequence of lines up to the end of file. A line may be one of the
following:
1) A blank line.
2) A comment line. Any line beginning with ';'
3) A section header. Definitions are divided into sections. Each
section begins with a line containing the section name enclosed in
square brackets. For example, "[section1]". The left bracket must
be the first character on the line. Section names are case
insensitive, i.e., "SECTION1" and "Section1" refer to the same
section.
4) Variable assignments. A variable assignment is a variable name
followed by the '=' sign and then the value of the variable. For
example, "A=B": "A" is the variable name; "B" is the variable value.
All variables following the section header belong in the section.
Variable names may be preceded with white space. Whitespace is not
permitted before the '=' sign. Variable names are case insensitive,
i.e., "A" and "a" refer to the same variable name.
Variable values may be numeric (any base) or a string. The case of
string arguments is preserved.
Programming Interfaces
======================
See apps/include/fsutils/inifile.h for interfaces supported by the INI file parser.
Test Program
============
Below is a simple test program:
int main(int argc, char *argv[])
{
INIHANDLE handle;
FILE *stream;
FAR char *ptr;
long value;
stream = fopen("/tmp/file.ini", "w");
fprintf(stream, "; Test INI file\n");
fprintf(stream, "[section1]\n");
fprintf(stream, " VAR1=1\n");
fprintf(stream, " VAR2=2\n");
fprintf(stream, " VAR3=3\n");
fprintf(stream, "\n");
fprintf(stream, "[section2]\n");
fprintf(stream, " VAR4=4\n");
fprintf(stream, " VAR5=5\n");
fprintf(stream, "VAR6=6\n");
fprintf(stream, "\n");
fclose(stream);
handle = inifile_initialize("/tmp/file.ini");
ptr = inifile_read_string(handle, "section2", "VAR5", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section2", "VAR5", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section1", "VAR2", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section1", "VAR2", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section3", "VAR3", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section3", "VAR3", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section1", "VAR3", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section1", "VAR3", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section1", "VAR1", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section1", "VAR1", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section1", "VAR42", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section1", "VAR42", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section2", "VAR6", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section2", "VAR6", ptr);
inifile_free_string(ptr);
ptr = inifile_read_string(handle, "section2", "VAR4", "OOPS");
printf("Section: %s Variable: %s String: %s\n", "section2", "VAR4", ptr);
inifile_free_string(ptr);
value = inifile_read_integer(handle, "section1", "VAR3", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section1", "VAR3", value);
value = inifile_read_integer(handle, "section3", "VAR3", 0);
printf("Section: %s Variable: %s String: %ld\n", "section3", "VAR3", value);
value = inifile_read_integer(handle, "section1", "VAR1", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section1", "VAR1", value);
value = inifile_read_integer(handle, "section2", "VAR5", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section2", "VAR5", value);
value = inifile_read_integer(handle, "section2", "VAR6", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section2", "VAR6", value);
value = inifile_read_integer(handle, "section1", "VAR42", 0);
printf("Section: %s Variable: %s String: %ld\n", "section1", "VAR42", value);
value = inifile_read_integer(handle, "section1", "VAR2", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section1", "VAR2", value);
value = inifile_read_integer(handle, "section2", "VAR4", 0);
printf("Section: %s Variable: %s Value: %ld\n", "section2", "VAR4", value);
inifile_uninitialize(handle);
return 0;
}
Test program output:
Section: section2 Variable: VAR5 String: 5
Section: section1 Variable: VAR2 String: 2
Section: section3 Variable: VAR3 String: OOPS
Section: section1 Variable: VAR3 String: 3
Section: section1 Variable: VAR1 String: 1
Section: section1 Variable: VAR42 String: OOPS
Section: section2 Variable: VAR6 String: 6
Section: section2 Variable: VAR4 String: 4
Section: section1 Variable: VAR3 Value: 3
Section: section3 Variable: VAR3 Value: 0
Section: section1 Variable: VAR1 Value: 1
Section: section2 Variable: VAR5 Value: 5
Section: section2 Variable: VAR6 Value: 6
Section: section1 Variable: VAR42 String: 0
Section: section1 Variable: VAR2 Value: 2
Section: section2 Variable: VAR4 Value: 4
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