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91 lines
2.1 KiB
91 lines
2.1 KiB
//
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// Created by MightyPork on 2017/12/01.
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//
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#ifndef INIWRITER_H
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#define INIWRITER_H
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#include "platform.h"
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typedef struct iniwriter_ {
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char *ptr;
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uint32_t skip;
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uint32_t count;
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} IniWriter;
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/**
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* Initialize a IniWriter struct (macro)
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*
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* @param buffer - buffer backing the writer, result will be written here
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* @param skip - number of written bytes to skip
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* @param count - number of bytes to write, truncate rest
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* @return structure initializer
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*/
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#define iw_init(buffer, skip, count) (IniWriter){buffer, skip, count}
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/**
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* Try to write a buffer to the file
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*
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* @param iw - iniwriter handle
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* @param buf - buffer to write
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* @param len - buffer len
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*/
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void iw_buff(IniWriter *iw, const uint8_t *buf, uint32_t len);
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/**
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* Try to write a string to the file
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*
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* @param iw - iniwriter handle
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* @param str - string to write
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*/
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static inline void iw_string(IniWriter *iw, const char *str)
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{
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if (iw->count != 0) {
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iw_buff(iw, (uint8_t *) str, (uint32_t) strlen(str));
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}
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}
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#define iw_newline(iw) iw_string(iw, "\r\n")
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/**
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* Try to snprintf to the file
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*
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* @param iw - iniwriter handle
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* @param format - format, like printf
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* @param ... - replacements
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*/
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void iw_sprintf(IniWriter *iw, const char *format, ...)
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__attribute__((format(printf,2,3)));
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// High level stuff
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/**
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* Try to write a INI section header [foobar]\r\n
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* @param iw - iniwriter handle
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* @param format - format, like printf
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* @param ... - replacements
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*/
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void iw_section(IniWriter *iw, const char *format, ...)
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__attribute__((format(printf,2,3)));
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/**
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* Try to write a INI comment # blah\r\n
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* @param iw - iniwriter handle
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* @param format - format, like printf
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* @param ... - replacements
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*/
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void iw_comment(IniWriter *iw, const char *format, ...)
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__attribute__((format(printf,2,3)));
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/**
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* Try to write a key-value entry
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*
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* @param iw - iniwriter handle
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* @param key - key
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* @param format - value format (like printf)
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* @param ... - replacements
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*/
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void iw_entry(IniWriter *iw, const char *key, const char *format, ...)
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__attribute__((format(printf,3,4)));
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#endif //INIWRITER_H
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