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authorPéter Szilágyi <peterke@gmail.com>2016-06-09 20:42:17 +0800
committerPéter Szilágyi <peterke@gmail.com>2016-06-09 20:42:17 +0800
commit6886913fdf7feaf39c49f1afebae1ef8ea10b514 (patch)
treeec094a0083ac6747a38be2d5757f5a76b788f3cf /console/console.go
parentc75d3b0ede005afc30aaa61f27bb5bbe2cf6a3f1 (diff)
parentdbcdf83ed8aca3f0b84d67b944fff2f3a8bc7769 (diff)
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Merge pull request #2670 from bas-vk/indent
Ignore round and curly brackets in strings for indentation level
Diffstat (limited to 'console/console.go')
-rw-r--r--console/console.go47
1 files changed, 45 insertions, 2 deletions
diff --git a/console/console.go b/console/console.go
index ab0c1ea58..00d1fea1d 100644
--- a/console/console.go
+++ b/console/console.go
@@ -331,11 +331,11 @@ func (c *Console) Interactive() {
// Append the line to the input and check for multi-line interpretation
input += line + "\n"
- indents = strings.Count(input, "{") + strings.Count(input, "(") - strings.Count(input, "}") - strings.Count(input, ")")
+ indents = countIndents(input)
if indents <= 0 {
prompt = c.prompt
} else {
- prompt = strings.Repeat("..", indents*2) + " "
+ prompt = strings.Repeat(".", indents*3) + " "
}
// If all the needed lines are present, save the command and run
if indents <= 0 {
@@ -354,6 +354,49 @@ func (c *Console) Interactive() {
}
}
+// countIndents returns the number of identations for the given input.
+// In case of invalid input such as var a = } the result can be negative.
+func countIndents(input string) int {
+ var (
+ indents = 0
+ inString = false
+ strOpenChar = ' ' // keep track of the string open char to allow var str = "I'm ....";
+ charEscaped = false // keep track if the previous char was the '\' char, allow var str = "abc\"def";
+ )
+
+ for _, c := range input {
+ switch c {
+ case '\\':
+ // indicate next char as escaped when in string and previous char isn't escaping this backslash
+ if !charEscaped && inString {
+ charEscaped = true
+ }
+ case '\'', '"':
+ if inString && !charEscaped && strOpenChar == c { // end string
+ inString = false
+ } else if !inString && !charEscaped { // begin string
+ inString = true
+ strOpenChar = c
+ }
+ charEscaped = false
+ case '{', '(':
+ if !inString { // ignore brackets when in string, allow var str = "a{"; without indenting
+ indents++
+ }
+ charEscaped = false
+ case '}', ')':
+ if !inString {
+ indents--
+ }
+ charEscaped = false
+ default:
+ charEscaped = false
+ }
+ }
+
+ return indents
+}
+
// Execute runs the JavaScript file specified as the argument.
func (c *Console) Execute(path string) error {
return c.jsre.Exec(path)