parse_format_spec()

const char * fl::format_detail::parse_format_spec ( const char * p, FormatSpec & spec )

inline

Definition at line 66 of file format.h.

                                                                      {
    if (!p || *p == '}') return p;
 
    // Check for fill and align (fill char followed by align char)
    // Align chars are: < > ^
    if (p[0] && p[1] && (p[1] == '<' || p[1] == '>' || p[1] == '^')) {
        spec.fill = p[0];
        spec.align = p[1];
        p += 2;
    } else if (*p == '<' || *p == '>' || *p == '^') {
        spec.align = *p++;
    }
 
    // Sign: + - or space
    if (*p == '+' || *p == '-' || *p == ' ') {
        spec.sign = *p++;
    }
 
    // Alternate form: #
    if (*p == '#') {
        spec.alternate = true;
        ++p;
    }
 
    // Zero padding: 0 (only if no alignment specified)
    if (*p == '0' && spec.align == '\0') {
        spec.zero_pad = true;
        ++p;
    }
 
    // Width
    while (*p >= '0' && *p <= '9') {
        spec.width = spec.width * 10 + (*p - '0');
        ++p;
    }
 
    // Precision: .N
    if (*p == '.') {
        ++p;
        spec.precision = 0;
        while (*p >= '0' && *p <= '9') {
            spec.precision = spec.precision * 10 + (*p - '0');
            ++p;
        }
    }
 
    // Type specifier
    if (*p && *p != '}') {
        spec.type = *p++;
    }
 
    return p;
}

References fl::format_detail::FormatSpec::align, fl::format_detail::FormatSpec::alternate, fl::format_detail::FormatSpec::fill, fl::format_detail::FormatSpec::precision, fl::format_detail::FormatSpec::sign, fl::format_detail::FormatSpec::type, fl::format_detail::FormatSpec::width, and fl::format_detail::FormatSpec::zero_pad.

Referenced by format_impl().

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