[PATCH v2] complete: add var and device param complete support

[Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>]

with $xx or xx= or if device $xx.yy or xx.yy=

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
v2:

make the call device_param_complete safe

Best Regards,
J.
 common/complete.c |  112 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 111 insertions(+), 1 deletions(-)

diff --git a/common/complete.c b/common/complete.c
index 46ba871..5f1df74 100644
--- a/common/complete.c
+++ b/common/complete.c
@@ -27,6 +27,7 @@
 #include <libgen.h>
 #include <command.h>
 #include <stringlist.h>
+#include <environment.h>
 
 static int file_complete(struct string_list *sl, char *instr)
 {
@@ -84,6 +85,111 @@ static int command_complete(struct string_list *sl, char *instr)
 	return 0;
 }
 
+static int device_param_complete(char begin, struct device_d *dev,
+				 struct string_list *sl, char *instr)
+{
+	struct param_d *param;
+	char cmd[128];
+	char *tmp = cmd;
+	int len, len2;
+
+	len = strlen(instr);
+	if (begin) {
+		tmp[0] = begin;
+		tmp++;
+	}
+	strcpy(tmp, dev_name(dev));
+	len2 = strlen(dev_name(dev));
+	tmp += len2;
+	tmp[0] = '.';
+	tmp++;
+
+	list_for_each_entry(param, &dev->parameters, list) {
+		memset(tmp, 0x0, 128 - (int)(tmp - cmd));
+		if (!strncmp(instr, param->name, len)) {
+			strcpy(tmp, param->name);
+			len2 = strlen(param->name);
+			if (begin)
+				tmp[len2] = ' ';
+			else
+				tmp[len2] = '=';
+			tmp[len2 + 1] = 0;
+			string_list_add(sl, cmd);
+		}
+	}
+
+	return 0;
+}
+
+static int env_param_complete(struct string_list *sl, char *instr, int eval)
+{
+	struct device_d *dev;
+	struct variable_d *var;
+	struct env_context *c, *current_c;
+	char cmd[128];
+	char *instr_param;
+	char *tmp = cmd;
+	int len, len2;
+	char end = '=';
+
+	if (eval) {
+		cmd[0] = '$';
+		tmp++;
+		end = ' ';
+	}
+
+	instr_param = strrchr(instr, '.');
+	len = strlen(instr);
+
+	current_c = get_current_context();
+	var = current_c->local->next;
+	while (var) {
+		if (!strncmp(instr, var_name(var), len)) {
+			len2 = strlen(var_name(var));
+			strcpy(tmp, var_name(var));
+			tmp[len2] = end;
+			tmp[len2 + 1] = 0;
+			string_list_add(sl, cmd);
+		}
+		var = var->next;
+	}
+
+	c = get_current_context();
+	while(c) {
+		var = c->global->next;
+		while (var) {
+			if (!strncmp(instr, var_name(var), len)) {
+				len2 = strlen(var_name(var));
+				strcpy(tmp, var_name(var));
+				tmp[len2] = end;
+				tmp[len2 + 1] = 0;
+				string_list_add(sl, cmd);
+			}
+			var = var->next;
+		}
+		c = c->parent;
+	}
+
+	if (instr_param) {
+		len = (instr_param - instr);
+		instr_param++;
+	} else {
+		len = strlen(instr);
+		instr_param = "";
+	}
+
+	for_each_device(dev) {
+		if (!strncmp(instr, dev_name(dev), len)) {
+			if (eval)
+				device_param_complete('$', dev, sl, instr_param);
+			else
+				device_param_complete(0, dev, sl, instr_param);
+		}
+	}
+
+	return 0;
+}
+
 static int tab_pressed = 0;
 
 void complete_reset(void)
@@ -121,8 +227,12 @@ int complete(char *instr, char **outstr)
 		t++;
 		file_complete(&sl, t);
 		instr = t;
-	} else
+	} else {
 		command_complete(&sl, instr);
+		env_param_complete(&sl, instr, 0);
+	}
+	if (*instr == '$')
+		env_param_complete(&sl, instr + 1, 1);
 
 	pos = strlen(instr);
 
-- 
1.7.4.1


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