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authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
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Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go')
-rw-r--r--vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go103
1 files changed, 103 insertions, 0 deletions
diff --git a/vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go b/vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go
new file mode 100644
index 000000000..8b69a67a5
--- /dev/null
+++ b/vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go
@@ -0,0 +1,103 @@
+package ansiterm
+
+import (
+ "strconv"
+)
+
+func parseParams(bytes []byte) ([]string, error) {
+ paramBuff := make([]byte, 0, 0)
+ params := []string{}
+
+ for _, v := range bytes {
+ if v == ';' {
+ if len(paramBuff) > 0 {
+ // Completed parameter, append it to the list
+ s := string(paramBuff)
+ params = append(params, s)
+ paramBuff = make([]byte, 0, 0)
+ }
+ } else {
+ paramBuff = append(paramBuff, v)
+ }
+ }
+
+ // Last parameter may not be terminated with ';'
+ if len(paramBuff) > 0 {
+ s := string(paramBuff)
+ params = append(params, s)
+ }
+
+ logger.Infof("Parsed params: %v with length: %d", params, len(params))
+ return params, nil
+}
+
+func parseCmd(context ansiContext) (string, error) {
+ return string(context.currentChar), nil
+}
+
+func getInt(params []string, dflt int) int {
+ i := getInts(params, 1, dflt)[0]
+ logger.Infof("getInt: %v", i)
+ return i
+}
+
+func getInts(params []string, minCount int, dflt int) []int {
+ ints := []int{}
+
+ for _, v := range params {
+ i, _ := strconv.Atoi(v)
+ // Zero is mapped to the default value in VT100.
+ if i == 0 {
+ i = dflt
+ }
+ ints = append(ints, i)
+ }
+
+ if len(ints) < minCount {
+ remaining := minCount - len(ints)
+ for i := 0; i < remaining; i++ {
+ ints = append(ints, dflt)
+ }
+ }
+
+ logger.Infof("getInts: %v", ints)
+
+ return ints
+}
+
+func (ap *AnsiParser) modeDispatch(param string, set bool) error {
+ switch param {
+ case "?3":
+ return ap.eventHandler.DECCOLM(set)
+ case "?6":
+ return ap.eventHandler.DECOM(set)
+ case "?25":
+ return ap.eventHandler.DECTCEM(set)
+ }
+ return nil
+}
+
+func (ap *AnsiParser) hDispatch(params []string) error {
+ if len(params) == 1 {
+ return ap.modeDispatch(params[0], true)
+ }
+
+ return nil
+}
+
+func (ap *AnsiParser) lDispatch(params []string) error {
+ if len(params) == 1 {
+ return ap.modeDispatch(params[0], false)
+ }
+
+ return nil
+}
+
+func getEraseParam(params []string) int {
+ param := getInt(params, 0)
+ if param < 0 || 3 < param {
+ param = 0
+ }
+
+ return param
+}