cuelang.org/go@v0.13.0/encoding/jsonschema/constraints_string.go (about)

     1  // Copyright 2019 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package jsonschema
    16  
    17  import (
    18  	"cuelang.org/go/cue"
    19  	"cuelang.org/go/cue/ast"
    20  	"cuelang.org/go/cue/token"
    21  )
    22  
    23  // String constraints
    24  
    25  func constraintContentEncoding(key string, n cue.Value, s *state) {
    26  	// TODO: only mark as used if it generates something.
    27  	// 7bit, 8bit, binary, quoted-printable and base64.
    28  	// RFC 2054, part 6.1.
    29  	// https://tools.ietf.org/html/rfc2045
    30  	// TODO: at least handle bytes.
    31  }
    32  
    33  func constraintContentMediaType(key string, n cue.Value, s *state) {
    34  	// TODO: only mark as used if it generates something.
    35  }
    36  
    37  func constraintMaxLength(key string, n cue.Value, s *state) {
    38  	max := s.uint(n)
    39  	strings := s.addImport(n, "strings")
    40  	s.add(n, stringType, ast.NewCall(ast.NewSel(strings, "MaxRunes"), max))
    41  }
    42  
    43  func constraintMinLength(key string, n cue.Value, s *state) {
    44  	min := s.uint(n)
    45  	strings := s.addImport(n, "strings")
    46  	s.add(n, stringType, ast.NewCall(ast.NewSel(strings, "MinRunes"), min))
    47  }
    48  
    49  func constraintPattern(key string, n cue.Value, s *state) {
    50  	str, ok := s.regexpValue(n)
    51  	if !ok {
    52  		return
    53  	}
    54  	s.add(n, stringType, &ast.UnaryExpr{Op: token.MAT, X: str})
    55  }