392 lines
15 KiB
C
392 lines
15 KiB
C
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#ifndef GS_UTIL_STRING_H
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#define GS_UTIL_STRING_H
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/* Copyright (c) 2013-2017 GomSpace A/S. All rights reserved. */
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/**
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@file
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String utilitizes.
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All string parsing functions will return #GS_OK if the string was parsed entirely.
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If the string contains characters that are not part of the selected base, the functions will return #GS_ERROR_DATA.
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If the value parsed is bigger than the output type, the functions will return #GS_ERROR_OVERFLOW.
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Spaces are ignored by all functions.
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*/
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#include <gs/util/error.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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Macro helper for concatening tokens.
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*/
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#define GS_STRINGZ(x) #x
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/**
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Stringify a preprocessing token.
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*/
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#define GS_DEF2STRING(x) GS_STRINGZ(x)
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/**
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* Strncpy (using size of destination) and forced zero termination.
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*/
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#define GS_STRNCPY(dst,src) strncpy(dst,src,GS_ARRAY_SIZE(dst));dst[GS_ARRAY_SIZE(dst)-1] = 0
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/**
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Convert string to int32 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_int32(const char * string, int32_t * value);
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/**
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Convert string to uint32 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_uint32(const char * string, uint32_t * value);
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/**
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Convert string to int64 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_int64(const char * string, int64_t * value);
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/**
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Convert string to uint64 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_uint64(const char * string, uint64_t * value);
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/**
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Convert string to int8 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 12 (decimal), 0x12 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_int8(const char * string, int8_t * value);
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/**
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Convert string to uint8 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 12 (decimal), 0x12 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_uint8(const char * string, uint8_t * value);
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/**
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Convert string to int16 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_int16(const char * string, int16_t * value);
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/**
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Convert string to uint16 (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_uint16(const char * string, uint16_t * value);
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/**
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Convert string to uint32 (hexadecimal).
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Accepts: hexadecimal (no leading 0x), e.g. a123, A123.
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_hex_to_uint32(const char * string, uint32_t * value);
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/**
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Convert string to uint64 (hexadecimal).
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Accepts: hexadecimal (no leading 0x), e.g. a123, A123.
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_hex_to_uint64(const char * string, uint64_t * value);
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/**
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Convert string to boolean.
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Accepts: true, false, on, off, 1, 0 (ignores case)
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@param[in] string string to convert.
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@param[out] pvalue converted value
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_bool(const char * string, bool * pvalue);
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/**
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Convert string to float.
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@param[in] string string to convert.
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@param[out] pvalue converted value
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_float(const char * string, float * pvalue);
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/**
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Convert string to double.
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@param[in] string string to convert.
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@param[out] pvalue converted value
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_double(const char * string, double * pvalue);
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/**
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Return string for boolean value (true or false).
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@param[in] value value
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@return \a 'true' if input is true, else \a 'false'.
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*/
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const char * gs_string_from_bool(bool value);
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/**
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Convert string to pointer (decimal or hexadecimal).
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Accepts: decimal or hexadecimal, 1234 (decimal), 0x1234 (hexadecimal)
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@param[in] string string to convert.
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@param[out] value converted value
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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gs_error_t gs_string_to_pointer(const char * string, void ** value);
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/**
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Format size as Bytes, Kilo or Mega.
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Output examples: \a 512.0B, \a 1.0K and \a 1.0M.
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@param[in] size size in bytes
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@param[out] buffer formatted size
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@param[in] buffer_size size of \a buf
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@return GS_ERROR_OVERFLOW if the resulting value is larger than the output type
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@return GS_ERROR_DATA if the input string could not be parsed completely
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@return GS_ERROR_ARG if the input string is a NULL pointer
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*/
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char * gs_string_bytesize(long size, char *buffer, size_t buffer_size);
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/**
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GS implementation of gcc's strtol
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Instead of setting errno this function takes a pointer to err which is set
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the same way as with gcc's strtol
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@param[in] nptr input string
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@param[out] endptr the pointer to the end of the string parsed
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@param[in] base number system (10 or 16)
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@param[out] err return value if overflow
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@return converted value
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*/
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int32_t gs_string_strto32int(const char *nptr, char **endptr, uint8_t base, gs_error_t * err);
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/**
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GS implementation of gcc's strtoul
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Instead of setting errno this function takes a pointer to err which is set
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the same way as with gcc's strtoul
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@param[in] nptr input string
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@param[out] endptr the pointer to the end of the string parsed
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@param[in] base number system (10 or 16)
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@param[out] err return value if overflow
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@return converted value
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*/
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uint64_t gs_string_strto64uint(const char *nptr, char **endptr, uint8_t base, gs_error_t * err);
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/**
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GS implementation of gcc's strtoul
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Instead of setting errno this function takes a pointer to err which is set
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the same way as with gcc's strtoul
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@param[in] nptr input string
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@param[out] endptr the pointer to the end of the string parsed
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@param[in] base number system (10 or 16)
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@param[out] err return value if overflow
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@return converted value
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*/
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int64_t gs_string_strto64int(const char *nptr, char **endptr, uint8_t base, gs_error_t * err);
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/**
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GS implementation of gcc's strtoul
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Instead of setting errno this function takes a pointer to err which is set
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the same way as with gcc's strtoul
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@param[in] nptr input string
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@param[out] endptr the pointer to the end of the string parsed
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@param[in] base number system (10 or 16)
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@param[out] err return value if overflow
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@return converted value
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*/
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uint32_t gs_string_strto32uint(const char *nptr, char **endptr, uint8_t base, gs_error_t * err);
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/**
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Returns pointer to first none-space character.
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@param[in] string string
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@return NULL if \a string is NULL, otherwise first none-space character.
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*/
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const char * gs_string_skip_leading_spaces(const char * string);
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/**
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Check if a string is NULL or empty.
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@param[in] string string
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@return true if string is empty or NULL.
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*/
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bool gs_string_empty(const char * string);
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/**
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Case-insentive wilcard match (similiar to fnmatch).
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Supports following wildcard(s):
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- * (asterix) zero or more characters.
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This may be extended in future versions and will not be considered a break of the API.
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@param[in] pattern pattern to match against \a string.
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@param[in] string string to match against \a pattern
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@return \a true if match, else \ false
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*/
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bool gs_string_match(const char * pattern, const char * string);
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/**
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Returns \a true if string contains wildcards.
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@param[in] string string to check for wildcards.
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@return \a true if string contains wildcards recognized by gs_string_match().
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*/
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bool gs_string_has_wildcards(const char * string);
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/**
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Trim string in buffer by removing leading/trailing white space.
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Uses isspace(c).
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@param[in] buffer buffer to trim.
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@param[in] buffer_size size of \a buffer.
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*/
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void gs_string_trim(char * buffer, size_t buffer_size);
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/**
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Returns \a true if string ends with endswith.
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@param[in] string string to check
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@param[in] endswith string that string should end with
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@return \a true if string endswith endswith
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*/
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bool gs_string_endswith(const char * string, const char * endswith);
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/**
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Extract suboption from a string.
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@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
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@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
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@param[out] buf user buffer for returning value of sub-option.
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@param[in] buf_size size of \a buf user buffer.
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@return_gs_error_t
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*/
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gs_error_t gs_string_get_suboption(const char * options, const char * suboption, char * buf, size_t buf_size);
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/**
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Extract suboption (as string) from a string.
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@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
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@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
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@param[in] def default value, returned if sub-option isn't found.
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@param[out] buf user buffer for returning value of sub-option.
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@param[in] buf_size size of \a buf user buffer.
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@return If the sub-option isn't found, the \a def default value will be copied to \a buf and #GS_OK will be returned.
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@return_gs_error_t
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*/
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gs_error_t gs_string_get_suboption_string(const char * options, const char * suboption, const char * def, char * buf, size_t buf_size);
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/**
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Extract suboption (as uint8) from a string.
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@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
|
||
|
|
@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
|
||
|
|
@param[in] def default value, returned if sub-option isn't found.
|
||
|
|
@param[out] value user supplied buffer for returning the value.
|
||
|
|
@return If the sub-option isn't found, the \a def default value will be copied to \a value and #GS_OK will be returned.
|
||
|
|
@return_gs_error_t
|
||
|
|
*/
|
||
|
|
gs_error_t gs_string_get_suboption_uint8(const char * options, const char * suboption, uint8_t def, uint8_t * value);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Extract suboption (as uint16) from a string.
|
||
|
|
|
||
|
|
@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
|
||
|
|
@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
|
||
|
|
@param[in] def default value, returned if sub-option isn't found.
|
||
|
|
@param[out] value user supplied buffer for returning the value.
|
||
|
|
@return If the sub-option isn't found, the \a def default value will be copied to \a value and #GS_OK will be returned.
|
||
|
|
@return_gs_error_t
|
||
|
|
*/
|
||
|
|
gs_error_t gs_string_get_suboption_uint16(const char * options, const char * suboption, uint16_t def, uint16_t * value);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Extract suboption (as uint32) from a string.
|
||
|
|
|
||
|
|
@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
|
||
|
|
@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
|
||
|
|
@param[in] def default value, returned if sub-option isn't found.
|
||
|
|
@param[out] value user supplied buffer for returning the value.
|
||
|
|
@return If the sub-option isn't found, the \a def default value will be copied to \a value and #GS_OK will be returned.
|
||
|
|
@return_gs_error_t
|
||
|
|
*/
|
||
|
|
gs_error_t gs_string_get_suboption_uint32(const char * options, const char * suboption, uint32_t def, uint32_t * value);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Extract suboption (as bool) from a string.
|
||
|
|
|
||
|
|
@param[in] options options string, e.g. \"/dev/ttyUSB1,speed=9600,parity=no,databits=8\".
|
||
|
|
@param[in] suboption sub-option to extract. If NULL or empty, the first option will be extracted (if present).
|
||
|
|
@param[in] def default value, returned if sub-option isn't found.
|
||
|
|
@param[out] value user supplied buffer for returning the value.
|
||
|
|
@return If the sub-option isn't found, the \a def default value will be copied to \a value and #GS_OK will be returned.
|
||
|
|
@return_gs_error_t
|
||
|
|
*/
|
||
|
|
gs_error_t gs_string_get_suboption_bool(const char * options, const char * suboption, bool def, bool * value);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|