(Fconstrain_to_field): Make sure we don't violate the
argument preconditions of find_before_next_newline in the case where both ONLY_IN_LINE and ESCAPE_FROM_EDGE are set and OLD_POS was indeed at the edge. (text_property_eq, text_property_stickiness): Don't use initializers for auto variables of type Lisp_Object. (find_field): Likewise. Use braces around nested ifs. (Fline_end_position): Store the raw eol in a variable, so that the final expression doesn't look so ugly. (Fconstrain_to_field): Doc fix. (preceding_pos): Renamed from `preceeding_pos'. (text_property_stickiness, find_field): Call preceding_pos, not preceeding_pos. (Ffield_string_no_properties): New function. (text_property_stickiness, preceeding_pos): New functions. (Ffield_string): Remove PROPS parameter. (find_field): Add MERGE_AT_BOUNDARY parameter. Rewrite to use stickiness of `field' property to resolve ambiguous cases. (Ffield_beginning, Ffield_end): Add ESCAPE_FROM_EDGE parameter. (Fconstrain_to_field): Likewise. (syms_of_editfns): Init Sfield_string_no_properties. (Ffield_string, Ferase_field, Ffield_end): Supply new MERGE_AT_BOUNDARY argument to find_field. (Fline_beginning_position, Fline_end_position): Supply new ESCAPE_FROM_EDGE parameter to Fconstrain_to_field. Pass a value of Qt for the ONLY_IN_LINE argument to Fconstrain_to_field (only matters if N != 1). (Fconstrain_to_field): Add get/set-current-point behavior when NEW_POS is nil. (find_field): Use XSETFASTINT instead of make_number. (Qfield): New variable. (find_field, Ferase_field, Ffield_string, Ffield_beginning, Ffield_end, Fconstrain_to_field): New functions. (Fline_beginning_position, Fline_end_position): Constrain to any field. (make_buffer_string_both): Remove minibuffer-prompt hack. (syms_of_editfns): Initialize Qfield, and subr entries for field functions above.
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