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o Improve psql's handling of multi-line statements
Currently, while \e saves a single statement as one entry, interactive statements are saved one line at a time. Ideally all statements would be saved like \e does. Sergey E. Koposov
This commit is contained in:
Bruce Momjian
parent
fbb1daed93
commit
4cb27fef0a
@ -3,10 +3,11 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/help.c,v 1.106 2005/10/15 02:49:40 momjian Exp $
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* $PostgreSQL: pgsql/src/bin/psql/help.c,v 1.107 2006/02/11 21:55:35 momjian Exp $
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*/
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#include "postgres_fe.h"
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#include "common.h"
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#include "pqexpbuffer.h"
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#include "input.h"
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#include "print.h"
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#include "help.h"
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@ -3,12 +3,12 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/input.c,v 1.46 2005/10/15 02:49:40 momjian Exp $
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* $PostgreSQL: pgsql/src/bin/psql/input.c,v 1.47 2006/02/11 21:55:35 momjian Exp $
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*/
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#include "postgres_fe.h"
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#include "input.h"
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#include "pqexpbuffer.h"
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#include "input.h"
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#include "settings.h"
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#include "tab-complete.h"
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#include "common.h"
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@ -90,18 +90,55 @@ gets_interactive(const char *prompt)
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#ifdef USE_READLINE
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char *s;
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static char *prev_hist = NULL;
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if (useReadline)
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/* On some platforms, readline is declared as readline(char *) */
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s = readline((char *) prompt);
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else
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s = gets_basic(prompt);
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if (useHistory && s && s[0])
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return s;
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#else
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return gets_basic(prompt);
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#endif
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}
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/* Put the line in the history buffer and also add the trailing \n */
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void pgadd_history(char *s, PQExpBuffer history_buf)
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{
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#ifdef USE_READLINE
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int slen;
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if (useReadline && useHistory && s && s[0])
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{
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slen = strlen(s);
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if (s[slen-1] == '\n')
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appendPQExpBufferStr(history_buf, s);
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else
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{
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appendPQExpBufferStr(history_buf, s);
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appendPQExpBufferChar(history_buf, '\n');
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}
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}
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#endif
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}
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/* Feed the contents of the history buffer to readline */
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void pgflush_history(PQExpBuffer history_buf)
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{
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#ifdef USE_READLINE
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char *s;
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static char *prev_hist;
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int slen, i;
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if (useReadline && useHistory )
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{
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enum histcontrol HC;
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s = history_buf->data;
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prev_hist = NULL;
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HC = GetHistControlConfig();
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if (((HC & hctl_ignorespace) && s[0] == ' ') ||
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@ -112,17 +149,27 @@ gets_interactive(const char *prompt)
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else
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{
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free(prev_hist);
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slen = strlen(s);
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/* Trim the trailing \n's */
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for (i = slen-1; i >= 0 && s[i] == '\n'; i--)
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;
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s[i + 1] = '\0';
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prev_hist = pg_strdup(s);
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add_history(s);
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}
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}
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return s;
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#else
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return gets_basic(prompt);
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resetPQExpBuffer(history_buf);
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}
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#endif
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}
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void pgclear_history(PQExpBuffer history_buf)
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{
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#ifdef USE_READLINE
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if (useReadline && useHistory)
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resetPQExpBuffer(history_buf);
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#endif
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}
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/*
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@ -157,6 +204,30 @@ gets_fromFile(FILE *source)
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}
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static void encode_history()
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{
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HIST_ENTRY *cur_hist;
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char *cur_ptr;
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for (history_set_pos(0), cur_hist = current_history();
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cur_hist; cur_hist = next_history())
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for (cur_ptr = cur_hist->line; *cur_ptr; cur_ptr++)
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if (*cur_ptr == '\n')
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*cur_ptr = '\0';
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}
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static void decode_history()
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{
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HIST_ENTRY *cur_hist;
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char *cur_ptr;
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for (history_set_pos(0), cur_hist = current_history();
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cur_hist; cur_hist = next_history())
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for (cur_ptr = cur_hist->line; *cur_ptr; cur_ptr++)
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if (*cur_ptr == '\0')
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*cur_ptr = '\n';
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}
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/*
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* Put any startup stuff related to input in here. It's good to maintain
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@ -197,6 +268,8 @@ initializeInput(int flags)
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if (psql_history)
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read_history(psql_history);
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decode_history();
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}
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#endif
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@ -215,6 +288,7 @@ saveHistory(char *fname)
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#ifdef USE_READLINE
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if (useHistory && fname)
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{
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encode_history();
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if (write_history(fname) == 0)
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return true;
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/input.h,v 1.23 2005/01/01 05:43:08 momjian Exp $
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* $PostgreSQL: pgsql/src/bin/psql/input.h,v 1.24 2006/02/11 21:55:35 momjian Exp $
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*/
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#ifndef INPUT_H
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#define INPUT_H
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@ -39,4 +39,9 @@ char *gets_fromFile(FILE *source);
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void initializeInput(int flags);
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bool saveHistory(char *fname);
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void pgadd_history(char *s, PQExpBuffer history_buf);
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void pgclear_history(PQExpBuffer history_buf);
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void pgflush_history(PQExpBuffer history_buf);
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#endif /* INPUT_H */
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/mainloop.c,v 1.69 2005/12/18 02:17:16 petere Exp $
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* $PostgreSQL: pgsql/src/bin/psql/mainloop.c,v 1.70 2006/02/11 21:55:35 momjian Exp $
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*/
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#include "postgres_fe.h"
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#include "mainloop.h"
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@ -37,6 +37,7 @@ MainLoop(FILE *source)
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PQExpBuffer query_buf; /* buffer for query being accumulated */
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PQExpBuffer previous_buf; /* if there isn't anything in the new buffer
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* yet, use this one for \e, etc. */
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PQExpBuffer history_buf;
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char *line; /* current line of input */
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int added_nl_pos;
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bool success;
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@ -66,7 +67,9 @@ MainLoop(FILE *source)
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query_buf = createPQExpBuffer();
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previous_buf = createPQExpBuffer();
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if (!query_buf || !previous_buf)
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history_buf = createPQExpBuffer();
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if (!query_buf || !previous_buf || !history_buf)
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{
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psql_error("out of memory\n");
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exit(EXIT_FAILURE);
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@ -90,7 +93,7 @@ MainLoop(FILE *source)
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successResult = EXIT_USER;
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break;
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}
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pgclear_history(history_buf);
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cancel_pressed = false;
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}
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@ -106,6 +109,8 @@ MainLoop(FILE *source)
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count_eof = 0;
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slashCmdStatus = PSQL_CMD_UNKNOWN;
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prompt_status = PROMPT_READY;
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if (pset.cur_cmd_interactive)
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pgclear_history(history_buf);
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if (pset.cur_cmd_interactive)
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putc('\n', stdout);
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@ -138,11 +143,15 @@ MainLoop(FILE *source)
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psql_scan_reset(scan_state);
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slashCmdStatus = PSQL_CMD_UNKNOWN;
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prompt_status = PROMPT_READY;
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}
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/*
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* otherwise, get another line
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*/
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if (pset.cur_cmd_interactive)
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/*
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* Pass all the contents of history_buf to readline
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* and free the history buffer.
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*/
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pgflush_history(history_buf);
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}
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/* otherwise, get another line */
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else if (pset.cur_cmd_interactive)
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{
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/* May need to reset prompt, eg after \r command */
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@ -213,6 +222,10 @@ MainLoop(FILE *source)
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psql_scan_setup(scan_state, line, strlen(line));
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success = true;
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if (pset.cur_cmd_interactive)
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/* Put current line in the history buffer */
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pgadd_history(line, history_buf);
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while (success || !die_on_error)
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{
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PsqlScanResult scan_result;
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@ -288,6 +301,13 @@ MainLoop(FILE *source)
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break;
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}
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if (pset.cur_cmd_interactive && prompt_status != PROMPT_CONTINUE)
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/*
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* Pass all the contents of history_buf to readline
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* and free the history buffer.
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*/
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pgflush_history(history_buf);
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psql_scan_finish(scan_state);
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free(line);
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@ -333,6 +353,7 @@ MainLoop(FILE *source)
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destroyPQExpBuffer(query_buf);
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destroyPQExpBuffer(previous_buf);
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destroyPQExpBuffer(history_buf);
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psql_scan_destroy(scan_state);
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/prompt.c,v 1.41 2006/01/03 23:32:30 tgl Exp $
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* $PostgreSQL: pgsql/src/bin/psql/prompt.c,v 1.42 2006/02/11 21:55:35 momjian Exp $
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*/
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#include "postgres_fe.h"
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#include "prompt.h"
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@ -12,6 +12,7 @@
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#include "settings.h"
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#include "common.h"
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#include "pqexpbuffer.h"
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#include "input.h"
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#include "variables.h"
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 2000-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.144 2006/01/11 08:43:12 neilc Exp $
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* $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.145 2006/02/11 21:55:35 momjian Exp $
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*/
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/*----------------------------------------------------------------------
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@ -43,6 +43,7 @@
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#include "postgres_fe.h"
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#include "tab-complete.h"
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#include "pqexpbuffer.h"
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#include "input.h"
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/* If we don't have this, we might as well forget about the whole thing: */
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@ -50,7 +51,6 @@
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#include <ctype.h>
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#include "libpq-fe.h"
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#include "pqexpbuffer.h"
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#include "common.h"
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#include "settings.h"
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