bool al_ustr_replace_range(ALLEGRO_USTR *us1, int start_pos1, int end_pos1,
   const ALLEGRO_USTR *us2)
Introduced in 5.0.0

Replace the part of us1 in the byte interval [start_pos, end_pos) with the contents of us2. start_pos cannot be less than 0. If start_pos is past the end of us1 then the space between the end of the string and start_pos will be padded with NUL ('\0') bytes.

Use al_ustr_offset to find the byte offsets.

Returns true on success, false on error.

See also: al_ustr_set_chr

Examples: ex_utf8

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