95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gdsroot.h"
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#include "gdsblk.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "format_targ_key.h"
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#include "gvsub2str.h"
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/* return a pointer that points after the last char added */
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unsigned char *format_targ_key(unsigned char *out_char_ptr, int4 max_size, gv_key *key, boolean_t dollarc)
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{
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unsigned char *gvkey_char_ptr, *out_top, *work_char_ptr, work_buff[MAX_ZWR_KEY_SZ], *work_top;
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boolean_t is_string;
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DEBUG_ONLY(unsigned char *gvkey_top_ptr;)
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assert(12 < max_size);
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out_top = out_char_ptr + max_size - 2; /* - 2, as could add comma left-paren or TWO double quotes between checks */
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gvkey_char_ptr = key->base;
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DEBUG_ONLY(gvkey_top_ptr = gvkey_char_ptr + key->end;)
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/* Ensure input key is well-formed (i.e. double null terminated) */
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assert(KEY_DELIMITER == *(gvkey_top_ptr - 1));
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assert(KEY_DELIMITER == *gvkey_top_ptr);
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/* The following assert (in the for loop) assumes that a global name will be able to fit in completely into any key.
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* But that is not true. For exmaple I can have a maxkeysize of 10 and try to set a global variable name of length 20.
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* That will have issues below. Until C9J10-003204 is fixed to handle long global names and small maxkeysizes, we
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* let the below code stay as it is (asserts only) to avoid overheads (of if checks for whether end is reached) in pro.
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* When that is fixed, it is possible, we see the key terminate before even the global name is finished. In that case,
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* we should return without '(' or ')' in the formatted buffer. The caller will know this is a case of too long global name.
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*/
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for (*out_char_ptr++ = '^'; (*out_char_ptr = *gvkey_char_ptr++); out_char_ptr++)
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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if (0 == *gvkey_char_ptr) /* no subscipts */
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return (out_char_ptr);
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*out_char_ptr++ = '(';
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for ( ; ; )
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{
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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if (0x01 == *gvkey_char_ptr) /* this must be a null string which was adjusted by op_gvorder */
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{
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*out_char_ptr++ = '"';
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*out_char_ptr++ = '"';
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} else
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{
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is_string = FALSE;
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if ((STR_SUB_PREFIX == *gvkey_char_ptr) && !dollarc)
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{
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is_string = TRUE;
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*out_char_ptr++ = '"';
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}
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work_top = gvsub2str(gvkey_char_ptr, work_buff, dollarc);
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for (work_char_ptr = work_buff; work_char_ptr < work_top;)
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{
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if (out_char_ptr >= out_top)
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{
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assert(FALSE);
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return (NULL);
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}
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*out_char_ptr++ = *work_char_ptr++;
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}
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if (is_string)
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*out_char_ptr++ = '"';
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}
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if (out_char_ptr >= out_top)
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{
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assert(FALSE);
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return (NULL);
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}
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for ( ; *gvkey_char_ptr++; )
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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if (*gvkey_char_ptr)
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*out_char_ptr++ = ',';
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else
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break;
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}
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*out_char_ptr++ = ')';
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assert(gvkey_char_ptr <= gvkey_top_ptr);
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return (out_char_ptr);
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}
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