zhangyiss/editline
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Allocate history scrollback buffer at runtime instead of at configure.

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Also make sure "unique history" is enabled by default in configure.
This commit is contained in:
Joachim Nilsson
2010-08-04 02:12:19 +02:00
parent 55aaddbc54
commit 04a0cbd902
5 changed files with 42 additions and 55 deletions
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25
src/editline.c
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@@ -38,9 +38,6 @@
#define META(x) ((x) | 0x80)
#define ISMETA(x) ((x) & 0x80)
#define UNMETA(x) ((x) & 0x7F)
#ifndef HIST_SIZE /* Default to one line history, i.e. disabled. */
#define HIST_SIZE 1
#endif
#define SEPS "\"#$&'()*:;<=>?[\\]^`{|}~\n\t "
/*
@@ -64,7 +61,7 @@ typedef struct {
typedef struct {
int Size;
int Pos;
char *Lines[HIST_SIZE];
char **Lines;
} el_hist_t;
/*
@@ -79,12 +76,18 @@ int rl_quit;
int rl_susp;
#endif
int el_hist_size = 15;
static el_hist_t H = {
.Size = 0,
.Pos = 0,
.Lines = NULL,
};
static char NILSTR[] = "";
static const char *el_input = NILSTR;
static char *Yanked;
static char *Screen;
static char NEWLINE[]= CRLF;
static el_hist_t H;
static int Repeat;
static int old_point;
static int el_push_back;
@@ -1000,6 +1003,12 @@ static char *editinput(void)
return NULL;
}
static void hist_alloc(void)
{
if (!H.Lines)
H.Lines = calloc(el_hist_size, sizeof(char *));
}
static void hist_add(const char *p)
{
int i;
@@ -1014,11 +1023,11 @@ static void hist_add(const char *p)
if ((s = strdup(p)) == NULL)
return;
if (H.Size < HIST_SIZE) {
if (H.Size < el_hist_size) {
H.Lines[H.Size++] = s;
} else {
free(H.Lines[0]);
for (i = 0; i < HIST_SIZE - 1; i++)
for (i = 0; i < el_hist_size - 1; i++)
H.Lines[i] = H.Lines[i + 1];
H.Lines[i] = s;
}
@@ -1072,6 +1081,8 @@ void rl_initialize(void)
{
if (!rl_prompt)
rl_prompt = "? ";
hist_alloc();
}
char *readline(const char *prompt)