A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
As the aforementioned RFC does not include any reference of encoding spaces as , I guess using %20 is the way to go today. For example, "%20" is the percent encoding for the binary octet "00100000" (ABNF: %x20), which in US ASCII corresponds to the space character (SP).
311 A bit of explaining as to what that %2520 is : The common space character is encoded as %20 as you noted yourself. The % character is encoded as %25. The way you get %2520 is when your url already has a %20 in it, and gets urlencoded again, which transforms the %20 to %2520. Are you (or any framework you might be using) double encoding ...
Sometimes the spaces get URL encoded to the sign, and some other times to %20. What is the difference and why should this happen?
@MetaByter I think it is more technically correct to phrase the question as "In a URL, should I encode the spaces using %20 or in the query part of a URL?" because while the example you show includes spaces only in the query part, it might not be clear to all readers that the answer depends.
Since it's not mentioned anywhere in the grammar, the only way to encode a space is with percent encoding (%20). In fact, the RFC even states that spaces are delimiters and should be ignored: In some cases, extra whitespace (spaces, line breaks, tabs, etc.) may have to be added to break a long URI across lines.
I am interested in knowing why '%20' is used as a space in URLs, particularly why %20 was used and why we even need it in the first place.
Depending on your point of view, that's not quite correct. %20 represents a space, but represents a non breaking space, technically a separate character. So even if it were a good idea to use HTML escaping in URLs, this wouldn't work because it would replace one character with another, changing the meaning of the URL.
How do I replace all the spaces with %20 in C#? Asked 16 years, 3 months ago Modified 1 year, 3 months ago Viewed 141k times
difference between %20 and %2 in url Asked 11 years, 10 months ago Modified 4 years, 5 months ago Viewed 62k times
After upgrading from SQL Server Management Studio (SSMS) v20 to SSMS v21, the "Integration Services Catalogs" is no longer visible. Steps to reproduce Upgrade SSMS from version 20 to ver...
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