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1 | 7e2515e8 | bellard | /*
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2 | 7e2515e8 | bellard | * QEMU readline utility
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3 | 5fafdf24 | ths | *
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4 | 7e2515e8 | bellard | * Copyright (c) 2003-2004 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 7e2515e8 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 7e2515e8 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | 7e2515e8 | bellard | * in the Software without restriction, including without limitation the rights
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9 | 7e2515e8 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 7e2515e8 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | 7e2515e8 | bellard | * furnished to do so, subject to the following conditions:
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12 | 7e2515e8 | bellard | *
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13 | 7e2515e8 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | 7e2515e8 | bellard | * all copies or substantial portions of the Software.
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15 | 7e2515e8 | bellard | *
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16 | 7e2515e8 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 7e2515e8 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 7e2515e8 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 7e2515e8 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 7e2515e8 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 7e2515e8 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 7e2515e8 | bellard | * THE SOFTWARE.
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23 | 7e2515e8 | bellard | */
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24 | 376253ec | aliguori | #include "readline.h" |
25 | 376253ec | aliguori | #include "monitor.h" |
26 | 7e2515e8 | bellard | |
27 | 7e2515e8 | bellard | #define IS_NORM 0 |
28 | 7e2515e8 | bellard | #define IS_ESC 1 |
29 | 7e2515e8 | bellard | #define IS_CSI 2 |
30 | 7e2515e8 | bellard | |
31 | 30bf5f46 | Paolo Bonzini | #undef printf
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32 | 7e2515e8 | bellard | #define printf do_not_use_printf
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33 | 7e2515e8 | bellard | |
34 | 4c36ba32 | aliguori | void readline_show_prompt(ReadLineState *rs)
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35 | 7e2515e8 | bellard | { |
36 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "%s", rs->prompt);
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37 | 4c36ba32 | aliguori | monitor_flush(rs->mon); |
38 | 4c36ba32 | aliguori | rs->last_cmd_buf_index = 0;
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39 | 4c36ba32 | aliguori | rs->last_cmd_buf_size = 0;
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40 | 4c36ba32 | aliguori | rs->esc_state = IS_NORM; |
41 | 7e2515e8 | bellard | } |
42 | 7e2515e8 | bellard | |
43 | 7e2515e8 | bellard | /* update the displayed command line */
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44 | 4c36ba32 | aliguori | static void readline_update(ReadLineState *rs) |
45 | 7e2515e8 | bellard | { |
46 | 7e2515e8 | bellard | int i, delta, len;
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47 | 7e2515e8 | bellard | |
48 | 4c36ba32 | aliguori | if (rs->cmd_buf_size != rs->last_cmd_buf_size ||
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49 | 4c36ba32 | aliguori | memcmp(rs->cmd_buf, rs->last_cmd_buf, rs->cmd_buf_size) != 0) {
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50 | 4c36ba32 | aliguori | for(i = 0; i < rs->last_cmd_buf_index; i++) { |
51 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\033[D");
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52 | 7e2515e8 | bellard | } |
53 | 4c36ba32 | aliguori | rs->cmd_buf[rs->cmd_buf_size] = '\0';
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54 | 4c36ba32 | aliguori | if (rs->read_password) {
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55 | 4c36ba32 | aliguori | len = strlen(rs->cmd_buf); |
56 | 7e2515e8 | bellard | for(i = 0; i < len; i++) |
57 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "*");
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58 | 7e2515e8 | bellard | } else {
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59 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "%s", rs->cmd_buf);
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60 | 7e2515e8 | bellard | } |
61 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\033[K");
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62 | 4c36ba32 | aliguori | memcpy(rs->last_cmd_buf, rs->cmd_buf, rs->cmd_buf_size); |
63 | 4c36ba32 | aliguori | rs->last_cmd_buf_size = rs->cmd_buf_size; |
64 | 4c36ba32 | aliguori | rs->last_cmd_buf_index = rs->cmd_buf_size; |
65 | 7e2515e8 | bellard | } |
66 | 4c36ba32 | aliguori | if (rs->cmd_buf_index != rs->last_cmd_buf_index) {
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67 | 4c36ba32 | aliguori | delta = rs->cmd_buf_index - rs->last_cmd_buf_index; |
68 | 7e2515e8 | bellard | if (delta > 0) { |
69 | 7e2515e8 | bellard | for(i = 0;i < delta; i++) { |
70 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\033[C");
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71 | 7e2515e8 | bellard | } |
72 | 7e2515e8 | bellard | } else {
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73 | 7e2515e8 | bellard | delta = -delta; |
74 | 7e2515e8 | bellard | for(i = 0;i < delta; i++) { |
75 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\033[D");
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76 | 7e2515e8 | bellard | } |
77 | 7e2515e8 | bellard | } |
78 | 4c36ba32 | aliguori | rs->last_cmd_buf_index = rs->cmd_buf_index; |
79 | 7e2515e8 | bellard | } |
80 | 4c36ba32 | aliguori | monitor_flush(rs->mon); |
81 | 7e2515e8 | bellard | } |
82 | 7e2515e8 | bellard | |
83 | 4c36ba32 | aliguori | static void readline_insert_char(ReadLineState *rs, int ch) |
84 | 7e2515e8 | bellard | { |
85 | 4c36ba32 | aliguori | if (rs->cmd_buf_index < READLINE_CMD_BUF_SIZE) {
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86 | 4c36ba32 | aliguori | memmove(rs->cmd_buf + rs->cmd_buf_index + 1,
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87 | 4c36ba32 | aliguori | rs->cmd_buf + rs->cmd_buf_index, |
88 | 4c36ba32 | aliguori | rs->cmd_buf_size - rs->cmd_buf_index); |
89 | 4c36ba32 | aliguori | rs->cmd_buf[rs->cmd_buf_index] = ch; |
90 | 4c36ba32 | aliguori | rs->cmd_buf_size++; |
91 | 4c36ba32 | aliguori | rs->cmd_buf_index++; |
92 | 7e2515e8 | bellard | } |
93 | 7e2515e8 | bellard | } |
94 | 7e2515e8 | bellard | |
95 | 4c36ba32 | aliguori | static void readline_backward_char(ReadLineState *rs) |
96 | 7e2515e8 | bellard | { |
97 | 4c36ba32 | aliguori | if (rs->cmd_buf_index > 0) { |
98 | 4c36ba32 | aliguori | rs->cmd_buf_index--; |
99 | 7e2515e8 | bellard | } |
100 | 7e2515e8 | bellard | } |
101 | 7e2515e8 | bellard | |
102 | 4c36ba32 | aliguori | static void readline_forward_char(ReadLineState *rs) |
103 | 7e2515e8 | bellard | { |
104 | 4c36ba32 | aliguori | if (rs->cmd_buf_index < rs->cmd_buf_size) {
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105 | 4c36ba32 | aliguori | rs->cmd_buf_index++; |
106 | 7e2515e8 | bellard | } |
107 | 7e2515e8 | bellard | } |
108 | 7e2515e8 | bellard | |
109 | 4c36ba32 | aliguori | static void readline_delete_char(ReadLineState *rs) |
110 | 7e2515e8 | bellard | { |
111 | 4c36ba32 | aliguori | if (rs->cmd_buf_index < rs->cmd_buf_size) {
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112 | 4c36ba32 | aliguori | memmove(rs->cmd_buf + rs->cmd_buf_index, |
113 | 4c36ba32 | aliguori | rs->cmd_buf + rs->cmd_buf_index + 1,
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114 | 4c36ba32 | aliguori | rs->cmd_buf_size - rs->cmd_buf_index - 1);
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115 | 4c36ba32 | aliguori | rs->cmd_buf_size--; |
116 | 7e2515e8 | bellard | } |
117 | 7e2515e8 | bellard | } |
118 | 7e2515e8 | bellard | |
119 | 4c36ba32 | aliguori | static void readline_backspace(ReadLineState *rs) |
120 | 7e2515e8 | bellard | { |
121 | 4c36ba32 | aliguori | if (rs->cmd_buf_index > 0) { |
122 | 4c36ba32 | aliguori | readline_backward_char(rs); |
123 | 4c36ba32 | aliguori | readline_delete_char(rs); |
124 | 7e2515e8 | bellard | } |
125 | 7e2515e8 | bellard | } |
126 | 7e2515e8 | bellard | |
127 | 4c36ba32 | aliguori | static void readline_backword(ReadLineState *rs) |
128 | 33fa11d4 | ths | { |
129 | 33fa11d4 | ths | int start;
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130 | 33fa11d4 | ths | |
131 | 4c36ba32 | aliguori | if (rs->cmd_buf_index == 0 || rs->cmd_buf_index > rs->cmd_buf_size) { |
132 | 33fa11d4 | ths | return;
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133 | 33fa11d4 | ths | } |
134 | 33fa11d4 | ths | |
135 | 4c36ba32 | aliguori | start = rs->cmd_buf_index - 1;
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136 | 33fa11d4 | ths | |
137 | 33fa11d4 | ths | /* find first word (backwards) */
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138 | 33fa11d4 | ths | while (start > 0) { |
139 | 4c36ba32 | aliguori | if (!qemu_isspace(rs->cmd_buf[start])) {
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140 | 33fa11d4 | ths | break;
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141 | 33fa11d4 | ths | } |
142 | 33fa11d4 | ths | |
143 | 33fa11d4 | ths | --start; |
144 | 33fa11d4 | ths | } |
145 | 33fa11d4 | ths | |
146 | 33fa11d4 | ths | /* find first space (backwards) */
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147 | 33fa11d4 | ths | while (start > 0) { |
148 | 4c36ba32 | aliguori | if (qemu_isspace(rs->cmd_buf[start])) {
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149 | 33fa11d4 | ths | ++start; |
150 | 33fa11d4 | ths | break;
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151 | 33fa11d4 | ths | } |
152 | 33fa11d4 | ths | |
153 | 33fa11d4 | ths | --start; |
154 | 33fa11d4 | ths | } |
155 | 33fa11d4 | ths | |
156 | 33fa11d4 | ths | /* remove word */
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157 | 4c36ba32 | aliguori | if (start < rs->cmd_buf_index) {
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158 | 4c36ba32 | aliguori | memmove(rs->cmd_buf + start, |
159 | 4c36ba32 | aliguori | rs->cmd_buf + rs->cmd_buf_index, |
160 | 4c36ba32 | aliguori | rs->cmd_buf_size - rs->cmd_buf_index); |
161 | 4c36ba32 | aliguori | rs->cmd_buf_size -= rs->cmd_buf_index - start; |
162 | 4c36ba32 | aliguori | rs->cmd_buf_index = start; |
163 | 33fa11d4 | ths | } |
164 | 33fa11d4 | ths | } |
165 | 33fa11d4 | ths | |
166 | 4c36ba32 | aliguori | static void readline_bol(ReadLineState *rs) |
167 | 7e2515e8 | bellard | { |
168 | 4c36ba32 | aliguori | rs->cmd_buf_index = 0;
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169 | 7e2515e8 | bellard | } |
170 | 7e2515e8 | bellard | |
171 | 4c36ba32 | aliguori | static void readline_eol(ReadLineState *rs) |
172 | 7e2515e8 | bellard | { |
173 | 4c36ba32 | aliguori | rs->cmd_buf_index = rs->cmd_buf_size; |
174 | 7e2515e8 | bellard | } |
175 | 7e2515e8 | bellard | |
176 | 4c36ba32 | aliguori | static void readline_up_char(ReadLineState *rs) |
177 | 7e2515e8 | bellard | { |
178 | 7e2515e8 | bellard | int idx;
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179 | 7e2515e8 | bellard | |
180 | 4c36ba32 | aliguori | if (rs->hist_entry == 0) |
181 | 7e2515e8 | bellard | return;
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182 | 4c36ba32 | aliguori | if (rs->hist_entry == -1) { |
183 | 7e2515e8 | bellard | /* Find latest entry */
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184 | 4c36ba32 | aliguori | for (idx = 0; idx < READLINE_MAX_CMDS; idx++) { |
185 | 4c36ba32 | aliguori | if (rs->history[idx] == NULL) |
186 | 7e2515e8 | bellard | break;
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187 | 7e2515e8 | bellard | } |
188 | 4c36ba32 | aliguori | rs->hist_entry = idx; |
189 | 7e2515e8 | bellard | } |
190 | 4c36ba32 | aliguori | rs->hist_entry--; |
191 | 4c36ba32 | aliguori | if (rs->hist_entry >= 0) { |
192 | 4c36ba32 | aliguori | pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf),
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193 | 4c36ba32 | aliguori | rs->history[rs->hist_entry]); |
194 | 4c36ba32 | aliguori | rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf); |
195 | 7e2515e8 | bellard | } |
196 | 7e2515e8 | bellard | } |
197 | 7e2515e8 | bellard | |
198 | 4c36ba32 | aliguori | static void readline_down_char(ReadLineState *rs) |
199 | 7e2515e8 | bellard | { |
200 | 5b0d2727 | aliguori | if (rs->hist_entry == -1) |
201 | 5b0d2727 | aliguori | return;
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202 | 5b0d2727 | aliguori | if (rs->hist_entry < READLINE_MAX_CMDS - 1 && |
203 | 5b0d2727 | aliguori | rs->history[++rs->hist_entry] != NULL) {
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204 | 4c36ba32 | aliguori | pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf),
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205 | 4c36ba32 | aliguori | rs->history[rs->hist_entry]); |
206 | 7e2515e8 | bellard | } else {
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207 | 5b0d2727 | aliguori | rs->cmd_buf[0] = 0; |
208 | 4c36ba32 | aliguori | rs->hist_entry = -1;
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209 | 7e2515e8 | bellard | } |
210 | 4c36ba32 | aliguori | rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf); |
211 | 7e2515e8 | bellard | } |
212 | 7e2515e8 | bellard | |
213 | 4c36ba32 | aliguori | static void readline_hist_add(ReadLineState *rs, const char *cmdline) |
214 | 7e2515e8 | bellard | { |
215 | 7e2515e8 | bellard | char *hist_entry, *new_entry;
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216 | 7e2515e8 | bellard | int idx;
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217 | 7e2515e8 | bellard | |
218 | 7e2515e8 | bellard | if (cmdline[0] == '\0') |
219 | 7e2515e8 | bellard | return;
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220 | 7e2515e8 | bellard | new_entry = NULL;
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221 | 4c36ba32 | aliguori | if (rs->hist_entry != -1) { |
222 | 7e2515e8 | bellard | /* We were editing an existing history entry: replace it */
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223 | 4c36ba32 | aliguori | hist_entry = rs->history[rs->hist_entry]; |
224 | 4c36ba32 | aliguori | idx = rs->hist_entry; |
225 | 7e2515e8 | bellard | if (strcmp(hist_entry, cmdline) == 0) { |
226 | 7e2515e8 | bellard | goto same_entry;
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227 | 7e2515e8 | bellard | } |
228 | 7e2515e8 | bellard | } |
229 | 7e2515e8 | bellard | /* Search cmdline in history buffers */
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230 | 4c36ba32 | aliguori | for (idx = 0; idx < READLINE_MAX_CMDS; idx++) { |
231 | 4c36ba32 | aliguori | hist_entry = rs->history[idx]; |
232 | 7e2515e8 | bellard | if (hist_entry == NULL) |
233 | 7e2515e8 | bellard | break;
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234 | 7e2515e8 | bellard | if (strcmp(hist_entry, cmdline) == 0) { |
235 | 7e2515e8 | bellard | same_entry:
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236 | 7e2515e8 | bellard | new_entry = hist_entry; |
237 | 7e2515e8 | bellard | /* Put this entry at the end of history */
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238 | 4c36ba32 | aliguori | memmove(&rs->history[idx], &rs->history[idx + 1],
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239 | 4c36ba32 | aliguori | (READLINE_MAX_CMDS - idx + 1) * sizeof(char *)); |
240 | 4c36ba32 | aliguori | rs->history[READLINE_MAX_CMDS - 1] = NULL; |
241 | 4c36ba32 | aliguori | for (; idx < READLINE_MAX_CMDS; idx++) {
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242 | 4c36ba32 | aliguori | if (rs->history[idx] == NULL) |
243 | 7e2515e8 | bellard | break;
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244 | 7e2515e8 | bellard | } |
245 | 7e2515e8 | bellard | break;
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246 | 7e2515e8 | bellard | } |
247 | 7e2515e8 | bellard | } |
248 | 4c36ba32 | aliguori | if (idx == READLINE_MAX_CMDS) {
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249 | 7e2515e8 | bellard | /* Need to get one free slot */
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250 | 4c36ba32 | aliguori | free(rs->history[0]);
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251 | 4c36ba32 | aliguori | memcpy(rs->history, &rs->history[1],
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252 | 4c36ba32 | aliguori | (READLINE_MAX_CMDS - 1) * sizeof(char *)); |
253 | 4c36ba32 | aliguori | rs->history[READLINE_MAX_CMDS - 1] = NULL; |
254 | 4c36ba32 | aliguori | idx = READLINE_MAX_CMDS - 1;
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255 | 7e2515e8 | bellard | } |
256 | 7e2515e8 | bellard | if (new_entry == NULL) |
257 | 7e2515e8 | bellard | new_entry = strdup(cmdline); |
258 | 4c36ba32 | aliguori | rs->history[idx] = new_entry; |
259 | 4c36ba32 | aliguori | rs->hist_entry = -1;
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260 | 7e2515e8 | bellard | } |
261 | 7e2515e8 | bellard | |
262 | 7e2515e8 | bellard | /* completion support */
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263 | 7e2515e8 | bellard | |
264 | 4c36ba32 | aliguori | void readline_add_completion(ReadLineState *rs, const char *str) |
265 | 7e2515e8 | bellard | { |
266 | 4c36ba32 | aliguori | if (rs->nb_completions < READLINE_MAX_COMPLETIONS) {
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267 | 4c36ba32 | aliguori | rs->completions[rs->nb_completions++] = qemu_strdup(str); |
268 | 7e2515e8 | bellard | } |
269 | 7e2515e8 | bellard | } |
270 | 7e2515e8 | bellard | |
271 | 4c36ba32 | aliguori | void readline_set_completion_index(ReadLineState *rs, int index) |
272 | 376253ec | aliguori | { |
273 | 4c36ba32 | aliguori | rs->completion_index = index; |
274 | 376253ec | aliguori | } |
275 | 376253ec | aliguori | |
276 | 4c36ba32 | aliguori | static void readline_completion(ReadLineState *rs) |
277 | 7e2515e8 | bellard | { |
278 | 376253ec | aliguori | Monitor *mon = cur_mon; |
279 | b427c726 | ths | int len, i, j, max_width, nb_cols, max_prefix;
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280 | 7e2515e8 | bellard | char *cmdline;
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281 | 7e2515e8 | bellard | |
282 | 4c36ba32 | aliguori | rs->nb_completions = 0;
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283 | 3b46e624 | ths | |
284 | 4c36ba32 | aliguori | cmdline = qemu_malloc(rs->cmd_buf_index + 1);
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285 | 4c36ba32 | aliguori | memcpy(cmdline, rs->cmd_buf, rs->cmd_buf_index); |
286 | 4c36ba32 | aliguori | cmdline[rs->cmd_buf_index] = '\0';
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287 | 4c36ba32 | aliguori | rs->completion_finder(cmdline); |
288 | 7e2515e8 | bellard | qemu_free(cmdline); |
289 | 7e2515e8 | bellard | |
290 | 7e2515e8 | bellard | /* no completion found */
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291 | 4c36ba32 | aliguori | if (rs->nb_completions <= 0) |
292 | 7e2515e8 | bellard | return;
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293 | 4c36ba32 | aliguori | if (rs->nb_completions == 1) { |
294 | 4c36ba32 | aliguori | len = strlen(rs->completions[0]);
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295 | 4c36ba32 | aliguori | for(i = rs->completion_index; i < len; i++) {
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296 | 4c36ba32 | aliguori | readline_insert_char(rs, rs->completions[0][i]);
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297 | 7e2515e8 | bellard | } |
298 | 7e2515e8 | bellard | /* extra space for next argument. XXX: make it more generic */
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299 | 4c36ba32 | aliguori | if (len > 0 && rs->completions[0][len - 1] != '/') |
300 | 4c36ba32 | aliguori | readline_insert_char(rs, ' ');
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301 | 7e2515e8 | bellard | } else {
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302 | 376253ec | aliguori | monitor_printf(mon, "\n");
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303 | 7e2515e8 | bellard | max_width = 0;
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304 | b427c726 | ths | max_prefix = 0;
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305 | 4c36ba32 | aliguori | for(i = 0; i < rs->nb_completions; i++) { |
306 | 4c36ba32 | aliguori | len = strlen(rs->completions[i]); |
307 | b427c726 | ths | if (i==0) { |
308 | b427c726 | ths | max_prefix = len; |
309 | b427c726 | ths | } else {
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310 | b427c726 | ths | if (len < max_prefix)
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311 | b427c726 | ths | max_prefix = len; |
312 | b427c726 | ths | for(j=0; j<max_prefix; j++) { |
313 | 4c36ba32 | aliguori | if (rs->completions[i][j] != rs->completions[0][j]) |
314 | b427c726 | ths | max_prefix = j; |
315 | b427c726 | ths | } |
316 | b427c726 | ths | } |
317 | 7e2515e8 | bellard | if (len > max_width)
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318 | 7e2515e8 | bellard | max_width = len; |
319 | 7e2515e8 | bellard | } |
320 | b427c726 | ths | if (max_prefix > 0) |
321 | 4c36ba32 | aliguori | for(i = rs->completion_index; i < max_prefix; i++) {
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322 | 4c36ba32 | aliguori | readline_insert_char(rs, rs->completions[0][i]);
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323 | b427c726 | ths | } |
324 | 7e2515e8 | bellard | max_width += 2;
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325 | 7e2515e8 | bellard | if (max_width < 10) |
326 | 7e2515e8 | bellard | max_width = 10;
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327 | 7e2515e8 | bellard | else if (max_width > 80) |
328 | 7e2515e8 | bellard | max_width = 80;
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329 | 7e2515e8 | bellard | nb_cols = 80 / max_width;
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330 | 7e2515e8 | bellard | j = 0;
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331 | 4c36ba32 | aliguori | for(i = 0; i < rs->nb_completions; i++) { |
332 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "%-*s", max_width, rs->completions[i]);
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333 | 4c36ba32 | aliguori | if (++j == nb_cols || i == (rs->nb_completions - 1)) { |
334 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\n");
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335 | 7e2515e8 | bellard | j = 0;
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336 | 7e2515e8 | bellard | } |
337 | 7e2515e8 | bellard | } |
338 | 4c36ba32 | aliguori | readline_show_prompt(rs); |
339 | 7e2515e8 | bellard | } |
340 | 7e2515e8 | bellard | } |
341 | 7e2515e8 | bellard | |
342 | 7e2515e8 | bellard | /* return true if command handled */
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343 | 4c36ba32 | aliguori | void readline_handle_byte(ReadLineState *rs, int ch) |
344 | 7e2515e8 | bellard | { |
345 | 4c36ba32 | aliguori | switch(rs->esc_state) {
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346 | 7e2515e8 | bellard | case IS_NORM:
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347 | 7e2515e8 | bellard | switch(ch) {
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348 | 7e2515e8 | bellard | case 1: |
349 | 4c36ba32 | aliguori | readline_bol(rs); |
350 | 7e2515e8 | bellard | break;
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351 | 7e2515e8 | bellard | case 4: |
352 | 4c36ba32 | aliguori | readline_delete_char(rs); |
353 | 7e2515e8 | bellard | break;
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354 | 7e2515e8 | bellard | case 5: |
355 | 4c36ba32 | aliguori | readline_eol(rs); |
356 | 7e2515e8 | bellard | break;
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357 | 7e2515e8 | bellard | case 9: |
358 | 4c36ba32 | aliguori | readline_completion(rs); |
359 | 7e2515e8 | bellard | break;
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360 | 7e2515e8 | bellard | case 10: |
361 | 7e2515e8 | bellard | case 13: |
362 | 4c36ba32 | aliguori | rs->cmd_buf[rs->cmd_buf_size] = '\0';
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363 | 4c36ba32 | aliguori | if (!rs->read_password)
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364 | 4c36ba32 | aliguori | readline_hist_add(rs, rs->cmd_buf); |
365 | 4c36ba32 | aliguori | monitor_printf(rs->mon, "\n");
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366 | 4c36ba32 | aliguori | rs->cmd_buf_index = 0;
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367 | 4c36ba32 | aliguori | rs->cmd_buf_size = 0;
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368 | 4c36ba32 | aliguori | rs->last_cmd_buf_index = 0;
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369 | 4c36ba32 | aliguori | rs->last_cmd_buf_size = 0;
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370 | 4c36ba32 | aliguori | rs->readline_func(rs->mon, rs->cmd_buf, rs->readline_opaque); |
371 | 7e2515e8 | bellard | break;
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372 | 33fa11d4 | ths | case 23: |
373 | 33fa11d4 | ths | /* ^W */
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374 | 4c36ba32 | aliguori | readline_backword(rs); |
375 | 33fa11d4 | ths | break;
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376 | 7e2515e8 | bellard | case 27: |
377 | 4c36ba32 | aliguori | rs->esc_state = IS_ESC; |
378 | 7e2515e8 | bellard | break;
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379 | 7e2515e8 | bellard | case 127: |
380 | 7e2515e8 | bellard | case 8: |
381 | 4c36ba32 | aliguori | readline_backspace(rs); |
382 | 7e2515e8 | bellard | break;
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383 | 7e2515e8 | bellard | case 155: |
384 | 4c36ba32 | aliguori | rs->esc_state = IS_CSI; |
385 | 7e2515e8 | bellard | break;
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386 | 7e2515e8 | bellard | default:
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387 | 7e2515e8 | bellard | if (ch >= 32) { |
388 | 4c36ba32 | aliguori | readline_insert_char(rs, ch); |
389 | 7e2515e8 | bellard | } |
390 | 7e2515e8 | bellard | break;
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391 | 7e2515e8 | bellard | } |
392 | 7e2515e8 | bellard | break;
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393 | 7e2515e8 | bellard | case IS_ESC:
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394 | 7e2515e8 | bellard | if (ch == '[') { |
395 | 4c36ba32 | aliguori | rs->esc_state = IS_CSI; |
396 | 4c36ba32 | aliguori | rs->esc_param = 0;
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397 | 7e2515e8 | bellard | } else {
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398 | 4c36ba32 | aliguori | rs->esc_state = IS_NORM; |
399 | 7e2515e8 | bellard | } |
400 | 7e2515e8 | bellard | break;
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401 | 7e2515e8 | bellard | case IS_CSI:
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402 | 7e2515e8 | bellard | switch(ch) {
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403 | 7e2515e8 | bellard | case 'A': |
404 | 7e2515e8 | bellard | case 'F': |
405 | 4c36ba32 | aliguori | readline_up_char(rs); |
406 | 7e2515e8 | bellard | break;
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407 | 7e2515e8 | bellard | case 'B': |
408 | 7e2515e8 | bellard | case 'E': |
409 | 4c36ba32 | aliguori | readline_down_char(rs); |
410 | 7e2515e8 | bellard | break;
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411 | 7e2515e8 | bellard | case 'D': |
412 | 4c36ba32 | aliguori | readline_backward_char(rs); |
413 | 7e2515e8 | bellard | break;
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414 | 7e2515e8 | bellard | case 'C': |
415 | 4c36ba32 | aliguori | readline_forward_char(rs); |
416 | 7e2515e8 | bellard | break;
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417 | 7e2515e8 | bellard | case '0' ... '9': |
418 | 4c36ba32 | aliguori | rs->esc_param = rs->esc_param * 10 + (ch - '0'); |
419 | 7e2515e8 | bellard | goto the_end;
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420 | 7e2515e8 | bellard | case '~': |
421 | 4c36ba32 | aliguori | switch(rs->esc_param) {
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422 | 7e2515e8 | bellard | case 1: |
423 | 4c36ba32 | aliguori | readline_bol(rs); |
424 | 7e2515e8 | bellard | break;
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425 | 7e2515e8 | bellard | case 3: |
426 | 4c36ba32 | aliguori | readline_delete_char(rs); |
427 | 7e2515e8 | bellard | break;
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428 | 7e2515e8 | bellard | case 4: |
429 | 4c36ba32 | aliguori | readline_eol(rs); |
430 | 7e2515e8 | bellard | break;
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431 | 7e2515e8 | bellard | } |
432 | 7e2515e8 | bellard | break;
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433 | 7e2515e8 | bellard | default:
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434 | 7e2515e8 | bellard | break;
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435 | 7e2515e8 | bellard | } |
436 | 4c36ba32 | aliguori | rs->esc_state = IS_NORM; |
437 | 7e2515e8 | bellard | the_end:
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438 | 7e2515e8 | bellard | break;
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439 | 7e2515e8 | bellard | } |
440 | 4c36ba32 | aliguori | readline_update(rs); |
441 | 7e2515e8 | bellard | } |
442 | 7e2515e8 | bellard | |
443 | 4c36ba32 | aliguori | void readline_start(ReadLineState *rs, const char *prompt, int read_password, |
444 | 7e2515e8 | bellard | ReadLineFunc *readline_func, void *opaque)
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445 | 7e2515e8 | bellard | { |
446 | 4c36ba32 | aliguori | pstrcpy(rs->prompt, sizeof(rs->prompt), prompt);
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447 | 4c36ba32 | aliguori | rs->readline_func = readline_func; |
448 | 4c36ba32 | aliguori | rs->readline_opaque = opaque; |
449 | 4c36ba32 | aliguori | rs->read_password = read_password; |
450 | 2724b180 | aliguori | readline_restart(rs); |
451 | 2724b180 | aliguori | } |
452 | 2724b180 | aliguori | |
453 | 2724b180 | aliguori | void readline_restart(ReadLineState *rs)
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454 | 2724b180 | aliguori | { |
455 | 4c36ba32 | aliguori | rs->cmd_buf_index = 0;
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456 | 4c36ba32 | aliguori | rs->cmd_buf_size = 0;
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457 | 7e2515e8 | bellard | } |
458 | 7e2515e8 | bellard | |
459 | 4c36ba32 | aliguori | const char *readline_get_history(ReadLineState *rs, unsigned int index) |
460 | 7e2515e8 | bellard | { |
461 | 4c36ba32 | aliguori | if (index >= READLINE_MAX_CMDS)
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462 | 7e2515e8 | bellard | return NULL; |
463 | 4c36ba32 | aliguori | return rs->history[index];
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464 | 4c36ba32 | aliguori | } |
465 | 4c36ba32 | aliguori | |
466 | 4c36ba32 | aliguori | ReadLineState *readline_init(Monitor *mon, |
467 | 4c36ba32 | aliguori | ReadLineCompletionFunc *completion_finder) |
468 | 4c36ba32 | aliguori | { |
469 | 4c36ba32 | aliguori | ReadLineState *rs = qemu_mallocz(sizeof(*rs));
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470 | 4c36ba32 | aliguori | |
471 | 4c36ba32 | aliguori | rs->hist_entry = -1;
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472 | 4c36ba32 | aliguori | rs->mon = mon; |
473 | 4c36ba32 | aliguori | rs->completion_finder = completion_finder; |
474 | 4c36ba32 | aliguori | |
475 | 4c36ba32 | aliguori | return rs;
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476 | 7e2515e8 | bellard | } |