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44 lines
1.4 KiB
44 lines
1.4 KiB
// Copyright 2013 The Prometheus Authors |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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package strutil |
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import ( |
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"fmt" |
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"net/url" |
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"regexp" |
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) |
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var ( |
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invalidLabelCharRE = regexp.MustCompile(`[^a-zA-Z0-9_]`) |
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) |
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// TableLinkForExpression creates an escaped relative link to the table view of |
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// the provided expression. |
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func TableLinkForExpression(expr string) string { |
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escapedExpression := url.QueryEscape(expr) |
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return fmt.Sprintf("/graph?g0.expr=%s&g0.tab=1", escapedExpression) |
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} |
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// GraphLinkForExpression creates an escaped relative link to the graph view of |
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// the provided expression. |
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func GraphLinkForExpression(expr string) string { |
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escapedExpression := url.QueryEscape(expr) |
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return fmt.Sprintf("/graph?g0.expr=%s&g0.tab=0", escapedExpression) |
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} |
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// SanitizeLabelName replaces anything that doesn't match |
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// client_label.LabelNameRE with an underscore. |
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func SanitizeLabelName(name string) string { |
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return invalidLabelCharRE.ReplaceAllString(name, "_") |
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}
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