From c3d60e6df33c47401813c4529d23d25a76c6a982 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Mon, 6 Jun 2011 17:04:59 +0800
Subject: complete: add var and device param complete support

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

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 common/complete.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 90 insertions(+), 6 deletions(-)

(limited to 'common')

diff --git a/common/complete.c b/common/complete.c
index 6d5349b509..9d749e0fc1 100644
--- a/common/complete.c
+++ b/common/complete.c
@@ -134,14 +134,95 @@ static int path_command_complete(struct string_list *sl, char *instr)
 static int command_complete(struct string_list *sl, char *instr)
 {
 	struct command *cmdtp;
-	char cmd[128];
+
+	if (!instr)
+		instr = "";
 
 	for_each_command(cmdtp) {
-		if (!strncmp(instr, cmdtp->name, strlen(instr))) {
-			strcpy(cmd, cmdtp->name);
-			cmd[strlen(cmdtp->name)] = ' ';
-			cmd[strlen(cmdtp->name) + 1] = 0;
-			string_list_add(sl, cmd);
+		if (strncmp(instr, cmdtp->name, strlen(instr)))
+			continue;
+
+		string_list_add_asprintf(sl, "%s ", cmdtp->name);
+	}
+
+	return 0;
+}
+
+static int device_param_complete(char *begin, struct device_d *dev,
+				 struct string_list *sl, char *instr)
+{
+	struct param_d *param;
+	int len;
+
+	if (!instr)
+		instr = "";
+
+	len = strlen(instr);
+
+	list_for_each_entry(param, &dev->parameters, list) {
+		if (strncmp(instr, param->name, len))
+			continue;
+
+		string_list_add_asprintf(sl, "%s%s.%s%c",
+			begin ? begin : "", dev_name(dev), param->name,
+			begin ? ' ' : '=');
+	}
+
+	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 *instr_param;
+	int len;
+	char end = '=';
+	char *begin = "";
+
+	if (!instr)
+		instr = "";
+
+	if (eval) {
+		begin = "$";
+		end = ' ';
+	}
+
+	instr_param = strrchr(instr, '.');
+	len = strlen(instr);
+
+	current_c = get_current_context();
+	for(var = current_c->local->next; var; var = var->next) {
+		if (strncmp(instr, var_name(var), len))
+			continue;
+		string_list_add_asprintf(sl, "%s%s%c",
+			begin, var_name(var), end);
+	}
+
+	for (c = get_current_context(); c; c = c->parent) {
+		for (var = c->global->next; var; var = var->next) {
+			if (strncmp(instr, var_name(var), len))
+				continue;
+			string_list_add_asprintf(sl, "%s%s%c",
+				begin, var_name(var), end);
+		}
+	}
+
+	if (instr_param) {
+		len = (instr_param - instr);
+		instr_param++;
+	} else {
+		len = strlen(instr);
+		instr_param = "";
+	}
+
+	for_each_device(dev) {
+		if (!strncmp(instr, dev_name(dev), len)) {
+			if (eval)
+				device_param_complete("$", dev, sl, instr_param);
+			else
+				device_param_complete(NULL, dev, sl, instr_param);
 		}
 	}
 
@@ -188,7 +269,10 @@ int complete(char *instr, char **outstr)
 	} else {
 		command_complete(&sl, instr);
 		path_command_complete(&sl, instr);
+		env_param_complete(&sl, instr, 0);
 	}
+	if (*instr == '$')
+		env_param_complete(&sl, instr + 1, 1);
 
 	pos = strlen(instr);
 
-- 
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