| 1 | /**
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| 2 | *** XMLCATALOG command response program.
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| 3 | ***
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| 4 | *** See Copyright for the status of this software.
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| 5 | ***
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| 6 | *** Author: Patrick Monnerat <[email protected]>, DATASPHERE S.A.
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| 7 | **/
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| 8 |
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| 9 | #include <stdio.h>
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| 10 | #include <stdlib.h>
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| 11 | #include <string.h>
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| 12 | #include <qshell.h>
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| 13 |
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| 14 |
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| 15 | /* Variable-length string, with 16-bit length. */
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| 16 | typedef struct {
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| 17 | short len;
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| 18 | char string[5000];
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| 19 | } vary2;
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| 20 |
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| 21 |
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| 22 | /* Variable-length string, with 32-bit length. */
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| 23 | typedef struct {
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| 24 | int len;
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| 25 | char string[5000];
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| 26 | } vary4;
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| 27 |
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| 28 |
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| 29 | /* Multiple occurrence parameter list. */
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| 30 | #define paramlist(itemsize, itemtype) \
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| 31 | _Packed struct { \
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| 32 | short len; \
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| 33 | _Packed union { \
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| 34 | char _pad[itemsize]; \
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| 35 | itemtype param; \
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| 36 | } item[1]; \
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| 37 | }
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| 38 |
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| 39 | /* Add element list structure. */
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| 40 | typedef struct {
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| 41 | short elcount; /* Element count (=3). */
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| 42 | paramlist(16, char) type; /* vary2(16). */
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| 43 | paramlist(256, char) origin; /* vary2(256). */
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| 44 | paramlist(256, char) replace; /* vary2(256). */
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| 45 | } addelement;
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| 46 |
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| 47 | /* SGML add element list structure. */
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| 48 | typedef struct {
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| 49 | short elcount; /* Element count (=3). */
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| 50 | paramlist(256, char) catalog; /* vary2(256). */
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| 51 | paramlist(256, char) ident; /* vary2(256). */
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| 52 | } sgmladdelement;
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| 53 |
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| 54 |
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| 55 | /* Arguments from CL command. */
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| 56 | typedef struct {
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| 57 | char * pgm; /* Program name. */
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| 58 | vary2 * instmf; /* Input catalog file name. */
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| 59 | vary2 * kind; /* Catalog kind. */
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| 60 | vary2 * outstmf; /* Output catalog file name. */
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| 61 | vary2 * convert; /* Convert SGML to XML. */
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| 62 | vary2 * superupd; /* --no-super-update. */
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| 63 | vary2 * verbose; /* Verbose output. */
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| 64 | paramlist(256 + 2, vary2) * delete; /* Identifiers to delete. */
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| 65 | paramlist(2, unsigned short) * add; /* Items to add. */
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| 66 | paramlist(2, unsigned short) * sgmladd; /* SGML items to add. */
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| 67 | paramlist(256 + 2, vary2) * resolve; /* Identifiers to resolve. */
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| 68 | paramlist(5000 + 2, vary2) * catalog; /* Additional catalog files. */
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| 69 | } arguments;
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| 70 |
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| 71 |
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| 72 | /* Definition of QSHELL program. */
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| 73 | extern void qshell(vary4 * cmd);
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| 74 | #pragma linkage(qshell, OS)
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| 75 | #pragma map(qshell, "QSHELL/QZSHQSHC")
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| 76 |
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| 77 | /* Macro to handle displacements. */
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| 78 | #define OFFSETBY(t, p, n) ((t *) (((char *) (p)) + (n)))
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| 79 |
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| 80 |
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| 81 | static void
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| 82 | vary4nappend(vary4 * dst, const char * src, size_t len)
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| 83 |
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| 84 | {
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| 85 | if (len > sizeof(dst->string) - dst->len)
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| 86 | len = sizeof(dst->string) - dst->len;
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| 87 |
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| 88 | if (len) {
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| 89 | memcpy(dst->string + dst->len, src, len);
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| 90 | dst->len += len;
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| 91 | }
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| 92 | }
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| 93 |
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| 94 |
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| 95 | static void
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| 96 | vary4append(vary4 * dst, const char * src)
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| 97 |
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| 98 | {
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| 99 | vary4nappend(dst, src, strlen(src));
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| 100 | }
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| 101 |
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| 102 |
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| 103 | static void
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| 104 | vary4arg(vary4 * dst, const char * arg)
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| 105 |
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| 106 | {
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| 107 | vary4nappend(dst, " ", 1);
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| 108 | vary4append(dst, arg);
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| 109 | }
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| 110 |
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| 111 |
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| 112 | static void
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| 113 | vary4varg(vary4 * dst, vary2 * arg)
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| 114 |
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| 115 | {
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| 116 | vary4nappend(dst, " ", 1);
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| 117 | vary4nappend(dst, arg->string, arg->len);
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| 118 | }
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| 119 |
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| 120 |
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| 121 | static void
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| 122 | vary4vescape(vary4 * dst, vary2 * arg)
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| 123 |
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| 124 | {
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| 125 | int i;
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| 126 |
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| 127 | for (i = 0; i < arg->len; i++)
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| 128 | if (arg->string[i] == '\'')
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| 129 | vary4nappend(dst, "'\"'\"'", 5);
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| 130 | else
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| 131 | vary4nappend(dst, arg->string + i, 1);
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| 132 | }
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| 133 |
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| 134 |
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| 135 | static void
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| 136 | vary4vargquote(vary4 * dst, vary2 * arg)
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| 137 |
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| 138 | {
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| 139 | vary4nappend(dst, " '", 2);
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| 140 | vary4vescape(dst, arg);
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| 141 | vary4nappend(dst, "'", 1);
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| 142 | }
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| 143 |
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| 144 |
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| 145 | int
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| 146 | main(int argsc, arguments * args)
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| 147 |
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| 148 | {
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| 149 | vary4 cmd;
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| 150 | int i;
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| 151 | char c;
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| 152 | addelement * aelp;
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| 153 | sgmladdelement * saelp;
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| 154 |
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| 155 | /* Specify additional catalogs. */
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| 156 | cmd.len = 0;
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| 157 | if (args->catalog->len) {
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| 158 | for (i = 0; i < args->catalog->len &&
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| 159 | !args->catalog->item[i].param.len; i++)
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| 160 | ;
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| 161 |
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| 162 | vary4append(&cmd, "XML_CATALOG_FILES=");
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| 163 | if (i < args->catalog->len) {
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| 164 | c = '\'';
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| 165 | for (i = 0; i < args->catalog->len; i++) {
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| 166 | if (!args->catalog->item[i].param.len)
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| 167 | continue;
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| 168 | vary4nappend(&cmd, &c, 1);
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| 169 | c = ' ';
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| 170 | vary4vescape(&cmd,
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| 171 | &args->catalog->item[i].param);
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| 172 | }
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| 173 | vary4nappend(&cmd, "'", 1);
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| 174 | }
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| 175 | vary4nappend(&cmd, " ", 1);
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| 176 | }
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| 177 |
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| 178 | /* find length of library name. */
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| 179 | for (i = 0; i < 10 && args->pgm[i] && args->pgm[i] != '/'; i++)
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| 180 | ;
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| 181 |
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| 182 | /* Store program name in command buffer. */
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| 183 | vary4append(&cmd, "/QSYS.LIB/");
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| 184 | vary4nappend(&cmd, args->pgm, i);
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| 185 | vary4append(&cmd, ".LIB/XMLCATALOG.PGM");
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| 186 |
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| 187 | /* Map command arguments to standard xmlcatalog argument vector. */
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| 188 | if (args->kind && args->kind->len)
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| 189 | vary4varg(&cmd, args->kind);
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| 190 |
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| 191 | if (args->verbose && args->verbose->len)
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| 192 | vary4varg(&cmd, args->verbose);
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| 193 |
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| 194 | if (args->delete)
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| 195 | for (i = 0; i < args->delete->len; i++) {
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| 196 | vary4arg(&cmd, "--del");
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| 197 | vary4vargquote(&cmd, &args->delete->item[i].param);
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| 198 | }
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| 199 |
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| 200 | if (args->kind && args->kind->len) {
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| 201 | /* Process SGML-specific parameters. */
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| 202 | if (args->superupd && args->superupd->len)
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| 203 | vary4varg(&cmd, args->superupd);
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| 204 |
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| 205 | if (args->sgmladd)
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| 206 | for (i = 0; i < args->sgmladd->len; i++) {
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| 207 | saelp = OFFSETBY(sgmladdelement, args->sgmladd,
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| 208 | args->sgmladd->item[i].param);
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| 209 | if (!((vary2 *) &saelp->catalog)->len)
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| 210 | continue;
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| 211 | vary4arg(&cmd, "--add");
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| 212 | vary4vargquote(&cmd, (vary2 *) &saelp->catalog);
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| 213 | vary4vargquote(&cmd, (vary2 *) &saelp->ident);
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| 214 | }
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| 215 | }
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| 216 | else {
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| 217 | /* Process XML-specific parameters. */
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| 218 | if (args->convert && args->convert->len)
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| 219 | vary4varg(&cmd, args->convert);
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| 220 |
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| 221 | if (args->add)
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| 222 | for (i = 0; i < args->add->len; i++) {
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| 223 | aelp = OFFSETBY(addelement, args->add,
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| 224 | args->add->item[i].param);
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| 225 | if (!((vary2 *) &aelp->origin)->len)
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| 226 | continue;
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| 227 | vary4arg(&cmd, "--add");
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| 228 | vary4varg(&cmd, (vary2 *) &aelp->type);
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| 229 | vary4vargquote(&cmd, (vary2 *) &aelp->origin);
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| 230 | vary4vargquote(&cmd, (vary2 *) &aelp->replace);
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| 231 | }
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| 232 | }
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| 233 |
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| 234 | /* Avoid INSTMF(*NEW) and OUTSMTF(*INSTMF). */
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| 235 | if (args->outstmf && args->outstmf->len && !args->outstmf->string[0])
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| 236 | if (args->instmf && args->instmf->len)
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| 237 | args->outstmf = args->instmf;
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| 238 | else
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| 239 | args->outstmf = NULL;
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| 240 |
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| 241 | /* If INSTMF(*NEW) and OUTSTMF(somepath), Use --create --noout and
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| 242 | somepath as (unexisting) input file. */
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| 243 | if (args->outstmf && args->outstmf->len)
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| 244 | if (!args->instmf || !args->instmf->len) {
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| 245 | vary4arg(&cmd, "--create");
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| 246 | vary4arg(&cmd, "--noout");
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| 247 | args->instmf = args->outstmf;
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| 248 | args->outstmf = NULL;
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| 249 | }
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| 250 |
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| 251 | /* If output to input file, use --noout option. */
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| 252 | if (args->instmf && args->outstmf && args->instmf->len &&
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| 253 | args->instmf->len == args->outstmf->len &&
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| 254 | !strncmp(args->instmf->string, args->outstmf->string,
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| 255 | args->instmf->len)) {
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| 256 | vary4arg(&cmd, "--noout");
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| 257 | args->outstmf = NULL;
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| 258 | }
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| 259 |
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| 260 | /* If no input file create catalog, else specify the input file name. */
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| 261 | /* Specify the input file name: my be a dummy one. */
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| 262 | if (!args->instmf || !args->instmf->len) {
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| 263 | vary4arg(&cmd, "--create -");
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| 264 | vary4arg(&cmd, ".dmyxmlcatalog");
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| 265 | }
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| 266 | else {
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| 267 | vary4arg(&cmd, "-");
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| 268 | vary4vargquote(&cmd, args->instmf);
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| 269 | }
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| 270 |
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| 271 | /* Query entities. */
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| 272 |
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| 273 | if (args->resolve)
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| 274 | for (i = 0; i < args->resolve->len; i++)
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| 275 | vary4vargquote(&cmd, &args->resolve->item[i].param);
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| 276 |
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| 277 | /* Redirect output if requested. */
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| 278 | if (args->outstmf && args->outstmf->len) {
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| 279 | vary4arg(&cmd, ">");
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| 280 | vary4vargquote(&cmd, args->outstmf);
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| 281 | }
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| 282 |
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| 283 | /* Execute the shell command. */
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| 284 | qshell(&cmd);
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| 285 |
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| 286 | /* Terminate. */
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| 287 | exit(0);
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| 288 | }
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