Examples :
{{road designation|A1|large|red|white|blue}} generates A1
{{road designation|B2|small|blue}} generates B2
{{road designation|C23|medium|green|yellow}} generates C23
{{road designation|H-35|foo|blue|yellow|red}} generates H-35
{{road designation|P-362985|small|brown|yellow|green}} generates P-362985
{{road designation|''P-362985''|small|brown|yellow|green}} generates P-362985
{{road designation|[[P-36584262458.5684236]]|pink|yellow|green}} generates P-36584262458.5684236
